diff --git a/app/game-api/src/router/join/index.ts b/app/game-api/src/router/join/index.ts
index af6371b..a086c0c 100644
--- a/app/game-api/src/router/join/index.ts
+++ b/app/game-api/src/router/join/index.ts
@@ -30,6 +30,28 @@ const DEFAULT_JOIN_STAT = {
     bonusMax: 5,
 };
 
+const buildSpecialityAge = (
+    retirementYear: number,
+    age: number,
+    relativeYear: number,
+    divisor: number
+): number => Math.max(Math.round((retirementYear - age) / divisor - relativeYear / 2), 3) + age;
+
+export const resolveJoinSpecialityAges = (options: {
+    retirementYear: number;
+    age: number;
+    relativeYear: number;
+    scenarioId: number;
+}): { domestic: number; war: number } => {
+    if (Number.isFinite(options.scenarioId) && options.scenarioId >= 1000) {
+        return { domestic: options.age + 3, war: options.age + 3 };
+    }
+    return {
+        domestic: buildSpecialityAge(options.retirementYear, options.age, options.relativeYear, 12),
+        war: buildSpecialityAge(options.retirementYear, options.age, options.relativeYear, 6),
+    };
+};
+
 const resolveJoinStat = (worldState: WorldStateRow) => {
     const config = asRecord(worldState.config);
     const stat = asRecord(config.stat);
@@ -456,6 +478,27 @@ export const joinRouter = router({
                     typeof configConst.defaultSpecialDomestic === 'string' ? configConst.defaultSpecialDomestic : 'None';
                 const defaultSpecialWar =
                     typeof configConst.defaultSpecialWar === 'string' ? configConst.defaultSpecialWar : 'None';
+                const retirementYear =
+                    typeof configConst.retirementYear === 'number' && Number.isFinite(configConst.retirementYear)
+                        ? configConst.retirementYear
+                        : 80;
+                const worldMeta = asRecord(worldState.meta);
+                const scenarioMeta = asRecord(worldMeta.scenarioMeta);
+                const startYear =
+                    typeof scenarioMeta.startYear === 'number' && Number.isFinite(scenarioMeta.startYear)
+                        ? scenarioMeta.startYear
+                        : worldState.currentYear;
+                const relativeYear = Math.max(
+                    worldState.currentYear - startYear,
+                    0
+                );
+                const scenarioId = Number(worldMeta.scenarioId ?? worldState.scenarioCode);
+                const specialityAges = resolveJoinSpecialityAges({
+                    retirementYear,
+                    age,
+                    relativeYear,
+                    scenarioId,
+                });
 
                 const specialWar =
                     input.inheritSpecial && isWarTraitKey(input.inheritSpecial) ? input.inheritSpecial : defaultSpecialWar;
@@ -515,6 +558,8 @@ export const joinRouter = router({
                             createdBy: 'join',
                             ownerName: ctx.auth?.user.displayName ?? '',
                             killturn: 24,
+                            specage: specialityAges.domestic,
+                            specage2: specialityAges.war,
                         },
                     },
                 });
diff --git a/app/game-api/test/joinSpecialityAge.test.ts b/app/game-api/test/joinSpecialityAge.test.ts
new file mode 100644
index 0000000..233771b
--- /dev/null
+++ b/app/game-api/test/joinSpecialityAge.test.ts
@@ -0,0 +1,35 @@
+import { describe, expect, it } from 'vitest';
+
+import { resolveJoinSpecialityAges } from '../src/router/join/index.js';
+
+describe('join speciality ages', () => {
+    it('uses the legacy retirement formula outside custom scenarios', () => {
+        expect(
+            resolveJoinSpecialityAges({
+                retirementYear: 80,
+                age: 20,
+                relativeYear: 0,
+                scenarioId: 910,
+            })
+        ).toEqual({ domestic: 25, war: 30 });
+        expect(
+            resolveJoinSpecialityAges({
+                retirementYear: 80,
+                age: 30,
+                relativeYear: 4,
+                scenarioId: 910,
+            })
+        ).toEqual({ domestic: 33, war: 36 });
+    });
+
+    it('forces both speciality ages to age plus three for scenario 1000 and above', () => {
+        expect(
+            resolveJoinSpecialityAges({
+                retirementYear: 80,
+                age: 26,
+                relativeYear: 7,
+                scenarioId: 2220,
+            })
+        ).toEqual({ domestic: 29, war: 29 });
+    });
+});
diff --git a/app/game-engine/src/scenario/scenarioSeeder.ts b/app/game-engine/src/scenario/scenarioSeeder.ts
index 93e4b61..d9e1dd0 100644
--- a/app/game-engine/src/scenario/scenarioSeeder.ts
+++ b/app/game-engine/src/scenario/scenarioSeeder.ts
@@ -427,6 +427,7 @@ export const seedScenarioToDatabase = async (options: ScenarioSeedOptions): Prom
                     itemCode: general.item ?? 'None',
                     turnTime: now,
                     age: resolveGeneralAge(scenario.startYear ?? null, general.birthYear),
+                    startAge: resolveGeneralAge(scenario.startYear ?? null, general.birthYear),
                     personalCode: general.personality ?? 'None',
                     specialCode: general.special ?? 'None',
                     special2Code: general.specialWar ?? 'None',
diff --git a/app/game-engine/src/turn/monthlySpecialityBetrayAction.ts b/app/game-engine/src/turn/monthlySpecialityBetrayAction.ts
new file mode 100644
index 0000000..830ed0f
--- /dev/null
+++ b/app/game-engine/src/turn/monthlySpecialityBetrayAction.ts
@@ -0,0 +1,262 @@
+import { JosaUtil, LiteHashDRBG, RandUtil } from '@sammo-ts/common';
+import {
+    LogCategory,
+    LogFormat,
+    LogScope,
+    TraitSelector,
+    WAR_TRAIT_KEYS,
+    loadDomesticTraitModules,
+    loadWarTraitModules,
+    type TraitModule,
+} from '@sammo-ts/logic';
+import { simpleSerialize } from '@sammo-ts/logic/war/utils.js';
+
+import type { InMemoryTurnWorld } from './inMemoryWorld.js';
+import type { MonthlyEventActionHandler, MonthlyEventEnvironment } from './monthlyEventHandler.js';
+import type { TurnGeneral } from './types.js';
+
+const LEGACY_DOMESTIC_SELECTION_KEYS = [
+    'che_경작',
+    'che_상재',
+    'che_발명',
+    'che_축성',
+    'che_수비',
+    'che_통찰',
+    'che_인덕',
+    'che_귀모',
+] as const;
+
+const normalizeCode = (value: unknown): string | null =>
+    typeof value === 'string' && value !== '' && value !== 'None' ? value : null;
+
+const readFiniteNumber = (source: Record<string, unknown>, keys: readonly string[]): number | null => {
+    for (const key of keys) {
+        const value = source[key];
+        if (typeof value === 'number' && Number.isFinite(value)) {
+            return value;
+        }
+    }
+    return null;
+};
+
+const readStringList = (source: Record<string, unknown>, key: string): string[] => {
+    const value = source[key];
+    return Array.isArray(value) ? value.filter((entry): entry is string => typeof entry === 'string') : [];
+};
+
+const resolveHiddenSeed = (world: InMemoryTurnWorld): string | number => {
+    const state = world.getState();
+    const value = state.meta.hiddenSeed ?? state.meta.seed ?? state.id;
+    return typeof value === 'string' || typeof value === 'number' ? value : String(value);
+};
+
+const readRuntimeNumber = (world: InMemoryTurnWorld, key: string, fallback: number): number => {
+    const value = world.getScenarioConfig().const[key];
+    return typeof value === 'number' && Number.isFinite(value) ? value : fallback;
+};
+
+const buildSpecialityAge = (
+    retirementYear: number,
+    age: number,
+    relativeYear: number,
+    divisor: number
+): number => Math.max(Math.round((retirementYear - age) / divisor - relativeYear / 2), 3) + age;
+
+const resolveSpecialityAge = (
+    general: TurnGeneral,
+    environment: MonthlyEventEnvironment,
+    retirementYear: number,
+    kind: 'domestic' | 'war'
+): number => {
+    const stored = readFiniteNumber(
+        general.meta,
+        kind === 'domestic' ? ['specage', 'specAge'] : ['specage2', 'specAge2']
+    );
+    if (stored !== null) {
+        return stored;
+    }
+
+    const currentRelativeYear = Math.max(environment.year - environment.startyear, 0);
+    const startAge =
+        typeof general.startAge === 'number' && Number.isFinite(general.startAge)
+            ? general.startAge
+            : general.age - currentRelativeYear;
+    const yearsSinceCreation = Math.max(general.age - startAge, 0);
+    const creationRelativeYear = Math.max(currentRelativeYear - yearsSinceCreation, 0);
+    return buildSpecialityAge(retirementYear, startAge, creationRelativeYear, kind === 'domestic' ? 12 : 6);
+};
+
+const pushSpecialityLogs = (
+    world: InMemoryTurnWorld,
+    general: TurnGeneral,
+    traitName: string,
+    environment: MonthlyEventEnvironment
+): void => {
+    const josaUl = JosaUtil.pick(traitName, '을');
+    world.pushLog({
+        scope: LogScope.GENERAL,
+        category: LogCategory.HISTORY,
+        generalId: general.id,
+        text: `특기 【<b><C>${traitName}</></b>】${josaUl} 습득`,
+        format: LogFormat.YEAR_MONTH,
+        year: environment.year,
+        month: environment.month,
+    });
+    world.pushLog({
+        scope: LogScope.GENERAL,
+        category: LogCategory.ACTION,
+        generalId: general.id,
+        text: `특기 【<b><L>${traitName}</></b>】${josaUl} 익혔습니다!`,
+        format: LogFormat.PLAIN,
+        year: environment.year,
+        month: environment.month,
+    });
+};
+
+const resolveTrait = (modules: readonly TraitModule[], key: string, label: string): TraitModule => {
+    const module = modules.find((candidate) => candidate.key === key);
+    if (!module) {
+        throw new Error(`Unknown ${label} speciality: ${key}`);
+    }
+    return module;
+};
+
+export const createAssignGeneralSpecialityHandler = (options: {
+    getWorld: () => InMemoryTurnWorld | null;
+}): MonthlyEventActionHandler => {
+    let modulePromise:
+        | Promise<{ domesticModules: TraitModule[]; warModules: TraitModule[] }>
+        | undefined;
+    const loadModules = () => {
+        modulePromise ??= Promise.all([
+            loadDomesticTraitModules([...LEGACY_DOMESTIC_SELECTION_KEYS]),
+            loadWarTraitModules([...WAR_TRAIT_KEYS]),
+        ]).then(([domesticModules, warModules]) => ({ domesticModules, warModules }));
+        return modulePromise;
+    };
+
+    return async (_args, environment) => {
+        const world = options.getWorld();
+        if (!world || environment.year < environment.startyear + 3) {
+            return;
+        }
+        const { domesticModules, warModules } = await loadModules();
+        const rng = new RandUtil(
+            new LiteHashDRBG(
+                simpleSerialize(resolveHiddenSeed(world), 'assignGeneralSpeciality', environment.year, environment.month)
+            )
+        );
+        const defaultDomestic = normalizeCode(world.getScenarioConfig().const.defaultSpecialDomestic);
+        const defaultWar = normalizeCode(world.getScenarioConfig().const.defaultSpecialWar);
+        const retirementYear = readRuntimeNumber(world, 'retirementYear', 80);
+        const scenarioStat = world.getScenarioConfig().stat;
+        // ref SQL에 ORDER BY가 없으므로 loader가 보존한 DB scan 순서를 두
+        // domestic/war pass에서 그대로 재사용한다.
+        const generals = world.listGenerals();
+
+        for (const general of generals) {
+            if (
+                general.role.specialDomestic !== defaultDomestic ||
+                resolveSpecialityAge(general, environment, retirementYear, 'domestic') > general.age
+            ) {
+                continue;
+            }
+            const key = TraitSelector.pickDomesticTrait(
+                rng,
+                general.stats,
+                domesticModules,
+                readStringList(general.meta, 'prev_types_special'),
+                scenarioStat
+            );
+            if (!key) {
+                throw new Error(`Unable to assign domestic speciality (generalId=${general.id}).`);
+            }
+            const trait = resolveTrait(domesticModules, key, 'domestic');
+            world.updateGeneral(general.id, {
+                role: { ...general.role, specialDomestic: key },
+            });
+            pushSpecialityLogs(world, general, trait.name, environment);
+        }
+
+        for (const general of generals) {
+            const currentGeneral = world.getGeneralById(general.id) ?? general;
+            if (
+                currentGeneral.role.specialWar !== defaultWar ||
+                resolveSpecialityAge(currentGeneral, environment, retirementYear, 'war') > currentGeneral.age
+            ) {
+                continue;
+            }
+            const inherited = currentGeneral.meta.inheritSpecificSpecialWar;
+            let key: string | null;
+            let meta = currentGeneral.meta;
+            let removeInherited = false;
+            if (Object.prototype.hasOwnProperty.call(currentGeneral.meta, 'inheritSpecificSpecialWar')) {
+                if (typeof inherited !== 'string') {
+                    throw new Error(`Invalid inherited war speciality (generalId=${currentGeneral.id}).`);
+                }
+                key = inherited;
+                removeInherited = true;
+            } else {
+                key = TraitSelector.pickWarTrait(
+                    rng,
+                    currentGeneral.stats,
+                    [
+                        readFiniteNumber(currentGeneral.meta, ['dex1']) ?? 0,
+                        readFiniteNumber(currentGeneral.meta, ['dex2']) ?? 0,
+                        readFiniteNumber(currentGeneral.meta, ['dex3']) ?? 0,
+                        readFiniteNumber(currentGeneral.meta, ['dex4']) ?? 0,
+                        readFiniteNumber(currentGeneral.meta, ['dex5']) ?? 0,
+                    ],
+                    warModules,
+                    readStringList(currentGeneral.meta, 'prev_types_special2'),
+                    scenarioStat
+                );
+            }
+            if (!key) {
+                throw new Error(`Unable to assign war speciality (generalId=${currentGeneral.id}).`);
+            }
+            const trait = resolveTrait(warModules, key, 'war');
+            if (removeInherited) {
+                delete currentGeneral.meta.inheritSpecificSpecialWar;
+                meta = { ...currentGeneral.meta };
+            }
+            world.updateGeneral(currentGeneral.id, {
+                role: { ...currentGeneral.role, specialWar: key },
+                meta,
+            });
+            pushSpecialityLogs(world, currentGeneral, trait.name, environment);
+        }
+    };
+};
+
+const readOptionalInteger = (value: unknown, fallback: number, label: string): number => {
+    if (value === undefined) {
+        return fallback;
+    }
+    if (typeof value !== 'number' || !Number.isInteger(value)) {
+        throw new Error(`${label} must be an integer.`);
+    }
+    return value;
+};
+
+export const createAddGlobalBetrayHandler = (options: {
+    getWorld: () => InMemoryTurnWorld | null;
+}): MonthlyEventActionHandler => {
+    return (args) => {
+        const world = options.getWorld();
+        if (!world) {
+            return;
+        }
+        const count = readOptionalInteger(args[0], 1, 'AddGlobalBetray count');
+        const maximum = readOptionalInteger(args[1], 0, 'AddGlobalBetray maximum');
+        for (const general of world.listGenerals()) {
+            const betray = readFiniteNumber(general.meta, ['betray']) ?? 0;
+            if (betray > maximum) {
+                continue;
+            }
+            world.updateGeneral(general.id, {
+                meta: { ...general.meta, betray: betray + count },
+            });
+        }
+    };
+};
diff --git a/app/game-engine/src/turn/turnDaemon.ts b/app/game-engine/src/turn/turnDaemon.ts
index 27955dd..0ff3cd6 100644
--- a/app/game-engine/src/turn/turnDaemon.ts
+++ b/app/game-engine/src/turn/turnDaemon.ts
@@ -66,6 +66,10 @@ import {
     createOpenNationBettingHandler,
 } from './monthlyNationBettingAction.js';
 import { createScoutBlockHandler } from './monthlyScoutBlockAction.js';
+import {
+    createAddGlobalBetrayHandler,
+    createAssignGeneralSpecialityHandler,
+} from './monthlySpecialityBetrayAction.js';
 import { buildCommandEnv } from './reservedTurnCommands.js';
 import { DatabaseTurnDaemonLease, TurnDaemonLeaseUnavailableError } from '../lifecycle/databaseTurnDaemonLease.js';
 
@@ -358,6 +362,18 @@ const createTurnDaemonRuntimeWithLease = async (
             })
         );
     }
+    eventActions.set(
+        'AssignGeneralSpeciality',
+        createAssignGeneralSpecialityHandler({
+            getWorld: () => worldRef,
+        })
+    );
+    eventActions.set(
+        'AddGlobalBetray',
+        createAddGlobalBetrayHandler({
+            getWorld: () => worldRef,
+        })
+    );
     eventActions.set('ProcessIncome', async (_args, environment) => {
         await incomeHandler.onMonthChanged?.({
             previousYear: environment.month === 1 ? environment.year - 1 : environment.year,
diff --git a/app/game-engine/src/turn/types.ts b/app/game-engine/src/turn/types.ts
index 87e7c74..957a5b4 100644
--- a/app/game-engine/src/turn/types.ts
+++ b/app/game-engine/src/turn/types.ts
@@ -22,6 +22,7 @@ export interface TurnWorldState {
 
 export interface TurnGeneral extends General {
     userId?: string | null;
+    startAge?: number;
     bornYear?: number;
     deadYear?: number;
     affinity?: number | null;
diff --git a/app/game-engine/src/turn/worldLoader.ts b/app/game-engine/src/turn/worldLoader.ts
index e7229e6..0567674 100644
--- a/app/game-engine/src/turn/worldLoader.ts
+++ b/app/game-engine/src/turn/worldLoader.ts
@@ -200,6 +200,7 @@ const mapGeneralRow = (row: TurnEngineGeneralRow): TurnGeneral => {
         train: row.train,
         atmos: row.atmos,
         age: row.age,
+        startAge: row.startAge,
         npcState: row.npcState,
         bornYear: row.bornYear,
         deadYear: row.deadYear,
diff --git a/app/game-engine/test/monthlySpecialityBetrayAction.test.ts b/app/game-engine/test/monthlySpecialityBetrayAction.test.ts
new file mode 100644
index 0000000..04b5d4e
--- /dev/null
+++ b/app/game-engine/test/monthlySpecialityBetrayAction.test.ts
@@ -0,0 +1,273 @@
+import { describe, expect, it } from 'vitest';
+import { LogCategory, LogFormat } from '@sammo-ts/logic';
+
+import { InMemoryTurnWorld } from '../src/turn/inMemoryWorld.js';
+import {
+    createAddGlobalBetrayHandler,
+    createAssignGeneralSpecialityHandler,
+} from '../src/turn/monthlySpecialityBetrayAction.js';
+import type { TurnEvent, TurnGeneral, TurnWorldSnapshot, TurnWorldState } from '../src/turn/types.js';
+
+const event: TurnEvent = {
+    id: 1,
+    targetCode: 'month',
+    priority: 9_000,
+    condition: true,
+    action: [],
+    meta: {},
+};
+
+const buildGeneral = (options: {
+    id: number;
+    name: string;
+    nationId: number;
+    stats: [number, number, number];
+    specialDomestic: string | null;
+    specialWar: string | null;
+    meta: Record<string, unknown>;
+}): TurnGeneral => ({
+    id: options.id,
+    userId: null,
+    name: options.name,
+    nationId: options.nationId,
+    cityId: options.id === 1 ? 1 : 2,
+    troopId: 0,
+    stats: {
+        leadership: options.stats[0],
+        strength: options.stats[1],
+        intelligence: options.stats[2],
+    },
+    experience: 0,
+    dedication: 0,
+    officerLevel: 1,
+    role: {
+        personality: null,
+        specialDomestic: options.specialDomestic,
+        specialWar: options.specialWar,
+        items: { horse: null, weapon: null, book: null, item: null },
+    },
+    injury: 0,
+    gold: 1_000,
+    rice: 1_000,
+    crew: 0,
+    crewTypeId: 0,
+    train: 0,
+    atmos: 0,
+    age: 30,
+    startAge: 20,
+    npcState: 2,
+    triggerState: { flags: {}, counters: {}, modifiers: {}, meta: {} },
+    meta: { ...options.meta, killturn: 24 },
+    lastTurn: { command: '휴식' },
+    turnTime: new Date('0200-01-01T00:00:00.000Z'),
+});
+
+const buildWorld = (hiddenSeed = 'monthly-speciality-fixture') => {
+    const state: TurnWorldState = {
+        id: 1,
+        currentYear: 200,
+        currentMonth: 1,
+        tickSeconds: 600,
+        lastTurnTime: new Date('0200-01-01T00:00:00.000Z'),
+        meta: { hiddenSeed },
+    };
+    const scenarioConfig: TurnWorldSnapshot['scenarioConfig'] = {
+        stat: { total: 300, min: 10, max: 100, npcTotal: 150, npcMax: 75, npcMin: 10, chiefMin: 70 },
+        iconPath: '.',
+        map: {},
+        const: {
+            defaultSpecialDomestic: 'None',
+            defaultSpecialWar: 'None',
+            retirementYear: 80,
+        },
+        environment: { mapName: 'test', unitSet: 'default' },
+    };
+    const domesticGeneral = buildGeneral({
+            id: 1,
+            name: '내정대상',
+            nationId: 1,
+            stats: [40, 45, 80],
+            specialDomestic: null,
+            specialWar: 'che_신산',
+            meta: { specage: 30, specage2: 99, prev_types_special: ['che_경작'] },
+        });
+    const warGeneral = buildGeneral({
+            id: 2,
+            name: '전투대상',
+            nationId: 1,
+            stats: [80, 75, 40],
+            specialDomestic: 'che_인덕',
+            specialWar: null,
+            meta: {
+                specage: 99,
+                specage2: 30,
+                prev_types_special2: ['che_돌격'],
+                dex1: 200,
+                dex2: 10,
+                dex3: 10,
+                dex4: 10,
+                dex5: 10,
+            },
+        });
+    const inheritedGeneral = buildGeneral({
+            id: 3,
+            name: '계승대상',
+            nationId: 2,
+            stats: [50, 50, 50],
+            specialDomestic: 'che_경작',
+            specialWar: null,
+            meta: { specage: 99, specage2: 30, inheritSpecificSpecialWar: 'che_의술', marker: 3 },
+        });
+    // The isolated Aria fixture scans eligible war rows as 3, 2 because the
+    // legacy query has no ORDER BY. Preserve that input order in this trace.
+    const generals = [domesticGeneral, inheritedGeneral, warGeneral];
+    return new InMemoryTurnWorld(
+        state,
+        {
+            scenarioConfig,
+            map: { id: 'test', name: 'test', cities: [] },
+            generals,
+            cities: [],
+            nations: [],
+            troops: [],
+            diplomacy: [],
+            events: [event],
+            initialEvents: [],
+        },
+        { schedule: { entries: [{ startMinute: 0, tickMinutes: 10 }] } }
+    );
+};
+
+const environment = {
+    year: 200,
+    month: 1,
+    startyear: 190,
+    currentEventID: 1,
+    turnTime: new Date('0200-01-01T00:00:00.000Z'),
+};
+
+describe('monthly speciality and betrayal actions', () => {
+    it('assigns eligible traits, consumes inherited war choice without RNG, and writes legacy logs', async () => {
+        const world = buildWorld();
+        await createAssignGeneralSpecialityHandler({ getWorld: () => world })([], environment, event);
+
+        expect(world.getGeneralById(1)?.role.specialDomestic).not.toBeNull();
+        expect(world.getGeneralById(1)?.role.specialDomestic).not.toBe('che_경작');
+        expect(world.getGeneralById(2)?.role.specialWar).not.toBeNull();
+        expect(world.getGeneralById(2)?.role.specialWar).not.toBe('che_돌격');
+        expect(world.getGeneralById(3)?.role.specialWar).toBe('che_의술');
+        expect(world.getGeneralById(3)?.meta).toEqual(expect.objectContaining({ marker: 3, killturn: 24 }));
+        expect(world.getGeneralById(3)?.meta).not.toHaveProperty('inheritSpecificSpecialWar');
+
+        const logs = world.peekDirtyState().logs;
+        expect(logs).toHaveLength(6);
+        expect(logs.slice(2, 4)).toEqual([
+            expect.objectContaining({
+                generalId: 3,
+                category: LogCategory.HISTORY,
+                format: LogFormat.YEAR_MONTH,
+                text: '특기 【<b><C>의술</></b>】을 습득',
+            }),
+            expect.objectContaining({
+                generalId: 3,
+                category: LogCategory.ACTION,
+                format: LogFormat.PLAIN,
+                text: '특기 【<b><L>의술</></b>】을 익혔습니다!',
+            }),
+        ]);
+    });
+
+    it('does nothing before the three-year opening period ends', async () => {
+        const world = buildWorld();
+        await createAssignGeneralSpecialityHandler({ getWorld: () => world })(
+            [],
+            { ...environment, year: 192 },
+            event
+        );
+        expect(world.peekDirtyState().generals).toEqual([]);
+        expect(world.peekDirtyState().logs).toEqual([]);
+    });
+
+    it('preserves a domestic trait when the same general also receives a war trait', async () => {
+        const world = buildWorld();
+        const general = world.getGeneralById(1)!;
+        world.updateGeneral(1, {
+            role: { ...general.role, specialWar: null },
+            meta: { ...general.meta, specage2: 30 },
+        });
+        world.acknowledgeDirtyState(world.peekDirtyState());
+
+        await createAssignGeneralSpecialityHandler({ getWorld: () => world })([], environment, event);
+
+        expect(world.getGeneralById(1)?.role.specialDomestic).not.toBeNull();
+        expect(world.getGeneralById(1)?.role.specialWar).not.toBeNull();
+    });
+
+    it('applies the two default scenario betrayal steps only to values within each threshold', async () => {
+        const world = buildWorld();
+        world.updateGeneral(1, { meta: { ...world.getGeneralById(1)!.meta, betray: 0 } });
+        world.updateGeneral(2, { meta: { ...world.getGeneralById(2)!.meta, betray: 1 } });
+        world.updateGeneral(3, { meta: { ...world.getGeneralById(3)!.meta, betray: 2 } });
+        world.acknowledgeDirtyState(world.peekDirtyState());
+        const handler = createAddGlobalBetrayHandler({ getWorld: () => world });
+
+        await handler([1, 0], environment, event);
+        await handler([1, 1], environment, event);
+
+        expect(world.listGenerals().map((general) => general.meta.betray)).toEqual([2, 2, 2]);
+    });
+
+    it.skipIf(!process.env.REF_HIDDEN_SEED)('matches the isolated legacy fixed-seed trait choices', async () => {
+        const world = buildWorld(process.env.REF_HIDDEN_SEED);
+        await createAssignGeneralSpecialityHandler({ getWorld: () => world })([], environment, event);
+
+        expect(world.getGeneralById(1)?.role.specialDomestic).toBe('che_상재');
+        expect(world.getGeneralById(2)?.role.specialWar).toBe('che_필살');
+        expect(world.getGeneralById(3)?.role.specialWar).toBe('che_의술');
+        expect(
+            world.peekDirtyState().logs.map((log) => ({
+                generalId: log.generalId,
+                category: log.category,
+                text: log.text,
+                format: log.format,
+            }))
+        ).toEqual([
+            {
+                generalId: 1,
+                category: LogCategory.HISTORY,
+                text: '특기 【<b><C>상재</></b>】를 습득',
+                format: LogFormat.YEAR_MONTH,
+            },
+            {
+                generalId: 1,
+                category: LogCategory.ACTION,
+                text: '특기 【<b><L>상재</></b>】를 익혔습니다!',
+                format: LogFormat.PLAIN,
+            },
+            {
+                generalId: 3,
+                category: LogCategory.HISTORY,
+                text: '특기 【<b><C>의술</></b>】을 습득',
+                format: LogFormat.YEAR_MONTH,
+            },
+            {
+                generalId: 3,
+                category: LogCategory.ACTION,
+                text: '특기 【<b><L>의술</></b>】을 익혔습니다!',
+                format: LogFormat.PLAIN,
+            },
+            {
+                generalId: 2,
+                category: LogCategory.HISTORY,
+                text: '특기 【<b><C>필살</></b>】을 습득',
+                format: LogFormat.YEAR_MONTH,
+            },
+            {
+                generalId: 2,
+                category: LogCategory.ACTION,
+                text: '특기 【<b><L>필살</></b>】을 익혔습니다!',
+                format: LogFormat.PLAIN,
+            },
+        ]);
+    });
+});
diff --git a/app/game-engine/test/monthlySpecialityBetrayPersistence.integration.test.ts b/app/game-engine/test/monthlySpecialityBetrayPersistence.integration.test.ts
new file mode 100644
index 0000000..12c3913
--- /dev/null
+++ b/app/game-engine/test/monthlySpecialityBetrayPersistence.integration.test.ts
@@ -0,0 +1,221 @@
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+import type { Nation } from '@sammo-ts/logic';
+import { createGamePostgresConnector, type GamePrismaClient } from '@sammo-ts/infra';
+
+import { createDatabaseTurnHooks } from '../src/turn/databaseHooks.js';
+import { InMemoryTurnWorld } from '../src/turn/inMemoryWorld.js';
+import {
+    createAddGlobalBetrayHandler,
+    createAssignGeneralSpecialityHandler,
+} from '../src/turn/monthlySpecialityBetrayAction.js';
+import type { TurnEvent, TurnGeneral, TurnWorldSnapshot, TurnWorldState } from '../src/turn/types.js';
+
+const databaseUrl = process.env.INPUT_EVENT_DATABASE_URL;
+const integration = describe.skipIf(!databaseUrl);
+const nationId = 990_091;
+const generalIds = [990_091, 990_092] as const;
+
+const event: TurnEvent = {
+    id: 1,
+    targetCode: 'month',
+    priority: 9_000,
+    condition: true,
+    action: [],
+    meta: {},
+};
+
+const nation: Nation = {
+    id: nationId,
+    name: '특기검증국',
+    color: '#777777',
+    capitalCityId: null,
+    chiefGeneralId: null,
+    gold: 0,
+    rice: 0,
+    power: 0,
+    level: 2,
+    typeCode: 'che_중립',
+    meta: {},
+};
+
+const buildGeneral = (
+    id: number,
+    options: { domestic: string | null; war: string | null; meta: Record<string, unknown> }
+): TurnGeneral => ({
+    id,
+    userId: null,
+    name: id === generalIds[0] ? '영속내정대상' : '영속계승대상',
+    nationId,
+    cityId: 0,
+    troopId: 0,
+    stats: { leadership: 40, strength: 45, intelligence: 80 },
+    experience: 0,
+    dedication: 0,
+    officerLevel: 1,
+    role: {
+        personality: null,
+        specialDomestic: options.domestic,
+        specialWar: options.war,
+        items: { horse: null, weapon: null, book: null, item: null },
+    },
+    injury: 0,
+    gold: 1_000,
+    rice: 1_000,
+    crew: 0,
+    crewTypeId: 0,
+    train: 0,
+    atmos: 0,
+    age: 30,
+    startAge: 20,
+    npcState: 2,
+    triggerState: { flags: {}, counters: {}, modifiers: {}, meta: {} },
+    meta: { ...options.meta, killturn: 24 },
+    lastTurn: { command: '휴식' },
+    turnTime: new Date('2026-07-25T00:00:00.000Z'),
+});
+
+integration('monthly speciality and betrayal persistence', () => {
+    let db: GamePrismaClient;
+    let closeDb: (() => Promise<void>) | undefined;
+
+    beforeAll(async () => {
+        const connector = createGamePostgresConnector({ url: databaseUrl! });
+        await connector.connect();
+        db = connector.prisma;
+        closeDb = () => connector.disconnect();
+        await db.logEntry.deleteMany({ where: { generalId: { in: [...generalIds] } } });
+        await db.general.deleteMany({ where: { id: { in: [...generalIds] } } });
+        await db.nation.deleteMany({ where: { id: nationId } });
+    });
+
+    afterAll(async () => {
+        await db.logEntry.deleteMany({ where: { generalId: { in: [...generalIds] } } });
+        await db.general.deleteMany({ where: { id: { in: [...generalIds] } } });
+        await db.nation.deleteMany({ where: { id: nationId } });
+        await closeDb?.();
+    });
+
+    it('flushes trait columns, inherited aux removal, betrayal, and four general logs', async () => {
+        const generals = [
+            buildGeneral(generalIds[0], {
+                domestic: null,
+                war: 'che_신산',
+                meta: { specage: 30, specage2: 99, betray: 0 },
+            }),
+            buildGeneral(generalIds[1], {
+                domestic: 'che_경작',
+                war: null,
+                meta: {
+                    specage: 99,
+                    specage2: 30,
+                    betray: 1,
+                    inheritSpecificSpecialWar: 'che_의술',
+                    marker: 2,
+                },
+            }),
+        ];
+        await db.nation.create({
+            data: {
+                id: nation.id,
+                name: nation.name,
+                color: nation.color,
+                level: nation.level,
+                typeCode: nation.typeCode,
+                meta: {},
+            },
+        });
+        await db.general.createMany({
+            data: generals.map((general) => ({
+                id: general.id,
+                name: general.name,
+                nationId: general.nationId,
+                cityId: general.cityId,
+                leadership: general.stats.leadership,
+                strength: general.stats.strength,
+                intel: general.stats.intelligence,
+                age: general.age,
+                startAge: general.startAge,
+                specialCode: general.role.specialDomestic ?? 'None',
+                special2Code: general.role.specialWar ?? 'None',
+                turnTime: general.turnTime,
+                meta: general.meta,
+            })),
+        });
+        const row = await db.worldState.create({
+            data: {
+                scenarioCode: 'monthly-speciality-betray-persistence',
+                currentYear: 200,
+                currentMonth: 1,
+                tickSeconds: 600,
+                config: {},
+                meta: { hiddenSeed: 'monthly-speciality-persistence' },
+            },
+        });
+        const state: TurnWorldState = {
+            id: row.id,
+            currentYear: 200,
+            currentMonth: 1,
+            tickSeconds: 600,
+            lastTurnTime: new Date('2026-07-25T00:00:00.000Z'),
+            meta: { hiddenSeed: 'monthly-speciality-persistence' },
+        };
+        const snapshot: TurnWorldSnapshot = {
+            scenarioConfig: {
+                stat: { total: 300, min: 10, max: 100, npcTotal: 150, npcMax: 75, npcMin: 10, chiefMin: 70 },
+                iconPath: '.',
+                map: {},
+                const: {
+                    defaultSpecialDomestic: 'None',
+                    defaultSpecialWar: 'None',
+                    retirementYear: 80,
+                },
+                environment: { mapName: 'test', unitSet: 'default' },
+            },
+            map: { id: 'test', name: 'test', cities: [] },
+            generals,
+            cities: [],
+            nations: [nation],
+            troops: [],
+            diplomacy: [],
+            events: [event],
+            initialEvents: [],
+        };
+        const world = new InMemoryTurnWorld(state, snapshot, {
+            schedule: { entries: [{ startMinute: 0, tickMinutes: 10 }] },
+        });
+        const hooks = await createDatabaseTurnHooks(databaseUrl!, world);
+        const environment = {
+            year: 200,
+            month: 1,
+            startyear: 190,
+            currentEventID: 1,
+            turnTime: state.lastTurnTime,
+        };
+
+        try {
+            await createAssignGeneralSpecialityHandler({ getWorld: () => world })([], environment, event);
+            await createAddGlobalBetrayHandler({ getWorld: () => world })([2, 1], environment, event);
+            await hooks.hooks.flushChanges?.({
+                lastTurnTime: state.lastTurnTime.toISOString(),
+                processedGenerals: 0,
+                processedTurns: 2,
+                durationMs: 0,
+                partial: false,
+            });
+
+            const rows = await db.general.findMany({
+                where: { id: { in: [...generalIds] } },
+                orderBy: { id: 'asc' },
+            });
+            expect(rows[0]?.specialCode).not.toBe('None');
+            expect(rows[0]?.meta).toMatchObject({ betray: 2 });
+            expect(rows[1]).toMatchObject({ special2Code: 'che_의술' });
+            expect(rows[1]?.meta).toMatchObject({ betray: 3, marker: 2 });
+            expect(rows[1]?.meta).not.toHaveProperty('inheritSpecificSpecialWar');
+            expect(await db.logEntry.count({ where: { generalId: { in: [...generalIds] } } })).toBe(4);
+        } finally {
+            await hooks.close();
+            await db.worldState.deleteMany({ where: { id: row.id } });
+        }
+    });
+});
diff --git a/app/game-engine/test/scenarioSeeder.test.ts b/app/game-engine/test/scenarioSeeder.test.ts
index e453fc5..1a09c8c 100644
--- a/app/game-engine/test/scenarioSeeder.test.ts
+++ b/app/game-engine/test/scenarioSeeder.test.ts
@@ -28,6 +28,7 @@ type ScenarioSeederPrismaClient = {
     };
     general: {
         count(): Promise<number>;
+        findFirst(): Promise<{ age: number; startAge: number; meta: unknown } | null>;
     };
     diplomacy: {
         count(): Promise<number>;
@@ -116,6 +117,14 @@ describeDb('scenario database seed', () => {
             expect(diplomacyCount).toBe(seed.nations.length * Math.max(0, seed.nations.length - 1));
             expect(eventCount).toBe(seed.events.length);
             expect(generalCount).toBeGreaterThan(0);
+            const seededGeneral = await prisma.general.findFirst();
+            expect(seededGeneral?.startAge).toBe(seededGeneral?.age);
+            expect(seededGeneral?.meta).toEqual(
+                expect.objectContaining({
+                    specage: expect.any(Number),
+                    specage2: expect.any(Number),
+                })
+            );
 
             const freeCity = seed.cities.find((city) => city.nationId === 0);
             const occupiedCity = seed.cities.find((city) => city.nationId !== 0);
diff --git a/packages/infra/src/turnEngineDb.ts b/packages/infra/src/turnEngineDb.ts
index 0502eac..18d3429 100644
--- a/packages/infra/src/turnEngineDb.ts
+++ b/packages/infra/src/turnEngineDb.ts
@@ -42,6 +42,7 @@ export interface TurnEngineGeneralRow {
     train: number;
     atmos: number;
     age: number;
+    startAge: number;
     npcState: number;
     lastTurn: JsonValue;
     bornYear: number;
diff --git a/packages/logic/src/actions/turn/general/che_내정특기초기화.ts b/packages/logic/src/actions/turn/general/che_내정특기초기화.ts
index e01eec7..34f68e3 100644
--- a/packages/logic/src/actions/turn/general/che_내정특기초기화.ts
+++ b/packages/logic/src/actions/turn/general/che_내정특기초기화.ts
@@ -83,7 +83,8 @@ export class ActionDefinition<
                 ? [general.role.specialDomestic!]
                 : nextPreviousTypes;
         general.role.specialDomestic = null;
-        setMetaNumber(general.meta, 'specAge', general.age + 1);
+        delete general.meta.specAge;
+        setMetaNumber(general.meta, 'specage', general.age + 1);
         context.addLog('새로운 내정 특기를 가질 준비가 되었습니다.');
         return { effects: [] };
     }
diff --git a/packages/logic/src/actions/turn/general/che_전투특기초기화.ts b/packages/logic/src/actions/turn/general/che_전투특기초기화.ts
index 7f5b6ad..f9dbe1c 100644
--- a/packages/logic/src/actions/turn/general/che_전투특기초기화.ts
+++ b/packages/logic/src/actions/turn/general/che_전투특기초기화.ts
@@ -82,7 +82,8 @@ export class ActionDefinition<
         general.meta.prev_types_special2 =
             nextPreviousTypes.length === WAR_TRAIT_KEYS.length ? [general.role.specialWar!] : nextPreviousTypes;
         general.role.specialWar = null;
-        setMetaNumber(general.meta, 'specAge2', general.age + 1);
+        delete general.meta.specAge2;
+        setMetaNumber(general.meta, 'specage2', general.age + 1);
         const specialName = ACTION_NAME.replace(' 초기화', '');
         context.addLog(`새로운 ${specialName}를 가질 준비가 되었습니다.`);
         tryApplyUniqueLottery(context, { acquireType: '아이템', reason: ACTION_NAME });
diff --git a/packages/logic/src/triggers/special/selector.ts b/packages/logic/src/triggers/special/selector.ts
index 39a0199..d9031e9 100644
--- a/packages/logic/src/triggers/special/selector.ts
+++ b/packages/logic/src/triggers/special/selector.ts
@@ -15,7 +15,17 @@ export class TraitSelector {
         const chiefMin = scenarioStat.chiefMin;
 
         let myCond = 0;
-        if (leadership < chiefMin || strength < chiefMin || intelligence < chiefMin) {
+        if (leadership > chiefMin) {
+            myCond |= TraitRequirement.STAT_LEADERSHIP;
+        }
+        if (strength >= intelligence * 0.95 && strength > chiefMin) {
+            myCond |= TraitRequirement.STAT_STRENGTH;
+        }
+        if (intelligence >= strength * 0.95 && intelligence > chiefMin) {
+            myCond |= TraitRequirement.STAT_INTEL;
+        }
+
+        if (myCond !== 0) {
             if (leadership < chiefMin) myCond |= TraitRequirement.STAT_NOT_LEADERSHIP;
             if (strength < chiefMin) myCond |= TraitRequirement.STAT_NOT_STRENGTH;
             if (intelligence < chiefMin) myCond |= TraitRequirement.STAT_NOT_INTEL;
@@ -48,7 +58,7 @@ export class TraitSelector {
 
         const dexSum = Object.values(dexMap).reduce((a, b) => a + b, 0);
         // 루트(합)/4 확률 기반 로직 (Legacy: sqrt(dexSum)/4)
-        const dexProb = Math.sqrt(dexSum) / 4;
+        const dexBase = Math.round(Math.sqrt(dexSum) / 4);
 
         // Legacy: 80% 확률로 0 반환 (이전 연도에 이미 얻었거나 기타 이유로 제한하는 인지)
         // 실제로는 pickSpecialWar에서 이 메서드 호출 전후에 별도 확률을 둘 수도 있으나,
@@ -57,12 +67,12 @@ export class TraitSelector {
             return 0;
         }
 
-        if (rng.nextRangeInt(0, 99) < dexProb) {
+        if (rng.nextRangeInt(0, 99) < dexBase) {
             return 0;
         }
 
         if (dexSum === 0) {
-            return Number(rng.choice(Object.keys(dexMap)));
+            return rng.choice(Object.values(dexMap));
         }
 
         const maxDex = Math.max(...Object.values(dexMap));
@@ -76,42 +86,59 @@ export class TraitSelector {
     /**
      * 사용 가능한 특기 목록에서 하나를 무작위로 선택 (pickTrait)
      */
-    static pickTrait(rng: RandUtil, myCond: number, traits: TraitModule[], prevTraitKeys: string[]): string | null {
-        const normPool: Record<string, number> = {};
-        const percentPool: { key: string; weight: number }[] = [];
+    private static pickTraitOnce(
+        rng: RandUtil,
+        myCond: number,
+        traits: TraitModule[],
+        prevTraitKeys: string[],
+        preferDexterity: boolean
+    ): string | null {
+        const dexterityPool: Array<[string, number]> = [];
+        const normPool: Array<[string, number]> = [];
+        const percentPool: Array<[string | null, number]> = [];
 
         for (const trait of traits) {
             if (!trait.selection) continue;
             if (prevTraitKeys.includes(trait.key)) continue;
 
-            let valid = false;
+            let matchedRequirement: number | null = null;
             for (const req of trait.selection.requirements) {
                 if (req === (req & myCond)) {
-                    valid = true;
+                    matchedRequirement = req;
                     break;
                 }
             }
 
-            if (!valid) continue;
+            if (matchedRequirement === null) continue;
 
-            if (trait.selection.weightType === TraitWeightType.PERCENT) {
-                percentPool.push({ key: trait.key, weight: trait.selection.weight });
+            if (preferDexterity && (matchedRequirement & TraitRequirement.REQ_DEXTERITY) !== 0) {
+                dexterityPool.push([trait.key, trait.selection.weight]);
+            } else if (trait.selection.weightType === TraitWeightType.PERCENT) {
+                percentPool.push([trait.key, trait.selection.weight]);
             } else {
-                normPool[trait.key] = trait.selection.weight;
+                normPool.push([trait.key, trait.selection.weight]);
             }
         }
 
-        // PERCENT 타입 특기 먼저 우선권 확인
-        for (const item of percentPool) {
-            if (rng.nextBool(item.weight / 100)) {
-                return item.key;
+        if (dexterityPool.length > 0) {
+            return rng.choiceUsingWeightPair(dexterityPool);
+        }
+
+        if (percentPool.length > 0) {
+            if (normPool.length > 0) {
+                const totalPercent = percentPool.reduce((sum, [, weight]) => sum + weight, 0);
+                percentPool.push([null, Math.max(0, 100 - totalPercent)]);
+            }
+            const selected = rng.choiceUsingWeightPair(percentPool);
+            if (selected !== null) {
+                return selected;
             }
         }
 
-        // NORM 타입 특기들 중 가중치 기반 선택
-        if (Object.keys(normPool).length === 0) return null;
-
-        return String(rng.choiceUsingWeight(normPool));
+        if (normPool.length > 0) {
+            return rng.choiceUsingWeightPair(normPool);
+        }
+        return null;
     }
 
     /**
@@ -125,13 +152,18 @@ export class TraitSelector {
         prevTraitKeys: string[],
         scenarioStat: ScenarioStatBlock
     ): string | null {
-        let myCond = this.calcCondGeneric(stats, scenarioStat);
-        const dexCond = this.calcCondDexterity(rng, dex);
-        if (dexCond) {
-            myCond |= dexCond | TraitRequirement.REQ_DEXTERITY;
+        const myCond =
+            this.calcCondGeneric(stats, scenarioStat) |
+            this.calcCondDexterity(rng, dex) |
+            TraitRequirement.REQ_DEXTERITY;
+        const selected = this.pickTraitOnce(rng, myCond, traits, prevTraitKeys, true);
+        if (selected !== null) {
+            return selected;
         }
-
-        return this.pickTrait(rng, myCond, traits, prevTraitKeys);
+        if (prevTraitKeys.length > 0) {
+            return this.pickWarTrait(rng, stats, dex, traits, [], scenarioStat);
+        }
+        return null;
     }
 
     /**
@@ -145,6 +177,13 @@ export class TraitSelector {
         scenarioStat: ScenarioStatBlock
     ): string | null {
         const myCond = this.calcCondGeneric(stats, scenarioStat);
-        return this.pickTrait(rng, myCond, traits, prevTraitKeys);
+        const selected = this.pickTraitOnce(rng, myCond, traits, prevTraitKeys, false);
+        if (selected !== null) {
+            return selected;
+        }
+        if (prevTraitKeys.length > 0) {
+            return this.pickDomesticTrait(rng, stats, traits, [], scenarioStat);
+        }
+        return null;
     }
 }
diff --git a/packages/logic/src/world/bootstrap.ts b/packages/logic/src/world/bootstrap.ts
index 0b37bcd..7ef2e92 100644
--- a/packages/logic/src/world/bootstrap.ts
+++ b/packages/logic/src/world/bootstrap.ts
@@ -161,6 +161,9 @@ const resolveAge = (startYear: number | null, birthYear: number): number => {
     return Math.max(startYear - birthYear, 0);
 };
 
+const buildSpecialityAge = (retirementYear: number, age: number, divisor: number): number =>
+    Math.max(Math.round((retirementYear - age) / divisor), 3) + age;
+
 const ADULT_GENERAL_AGE = 14;
 
 type GeneralBootstrapDisposition = 'active' | 'delayed' | 'expired';
@@ -294,6 +297,9 @@ const buildGeneralSeeds = (
 
     const defaultGold = options?.defaultGeneralGold ?? DEFAULT_GENERAL_GOLD;
     const defaultRice = options?.defaultGeneralRice ?? DEFAULT_GENERAL_RICE;
+    const rawRetirementYear = scenario.config.const.retirementYear;
+    const retirementYear =
+        typeof rawRetirementYear === 'number' && Number.isFinite(rawRetirementYear) ? rawRetirementYear : 80;
 
     for (const row of rows) {
         const id = nextId;
@@ -313,6 +319,8 @@ const buildGeneralSeeds = (
 
         const seedMeta: Record<string, unknown> = {
             source: contextLabel,
+            specage: buildSpecialityAge(retirementYear, age, 12),
+            specage2: buildSpecialityAge(retirementYear, age, 6),
         };
         if (row.affinity !== null) {
             seedMeta.affinity = row.affinity;
@@ -374,6 +382,8 @@ const buildGeneralSeeds = (
             killturn: resolveKillturnFromDeathYear(scenario.startYear, 1, deathYear, DEFAULT_GENERAL_KILLTURN),
             npcType,
             crewTypeId: defaultCrewTypeId,
+            specage: buildSpecialityAge(retirementYear, age, 12),
+            specage2: buildSpecialityAge(retirementYear, age, 6),
         };
         addTriggerMeta(generalMeta, 'affinity', row.affinity);
         addTriggerMeta(generalMeta, 'personality', row.personality ?? undefined);
diff --git a/packages/logic/test/specialTraitSelectorParity.test.ts b/packages/logic/test/specialTraitSelectorParity.test.ts
new file mode 100644
index 0000000..2faeff7
--- /dev/null
+++ b/packages/logic/test/specialTraitSelectorParity.test.ts
@@ -0,0 +1,130 @@
+import { describe, expect, it } from 'vitest';
+import { RandUtil, type RNG } from '@sammo-ts/common';
+
+import { TraitRequirement, TraitWeightType } from '../src/triggers/special/requirements.js';
+import { TraitSelector } from '../src/triggers/special/selector.js';
+import type { TraitModule } from '../src/triggers/special/types.js';
+
+class ScriptedRng implements RNG {
+    public floatCalls = 0;
+    public intCalls = 0;
+
+    constructor(
+        private readonly floats: number[],
+        private readonly ints: number[]
+    ) {}
+
+    getMaxInt(): number {
+        return 0x7fff_ffff;
+    }
+
+    nextBytes(bytes: number): Uint8Array<ArrayBuffer> {
+        return new Uint8Array(bytes);
+    }
+
+    nextBits(bits: number): Uint8Array<ArrayBuffer> {
+        return new Uint8Array(Math.ceil(bits / 8));
+    }
+
+    nextInt(max = 0x7fff_ffff): number {
+        const value = this.ints[this.intCalls++] ?? 0;
+        return Math.max(0, Math.min(value, max));
+    }
+
+    nextFloat1(): number {
+        return this.floats[this.floatCalls++] ?? 0;
+    }
+}
+
+const scenarioStat = {
+    total: 300,
+    min: 10,
+    max: 100,
+    npcTotal: 150,
+    npcMax: 75,
+    npcMin: 10,
+    chiefMin: 70,
+};
+
+const trait = (
+    key: string,
+    requirement: TraitRequirement,
+    weightType = TraitWeightType.NORM,
+    weight = 1
+): TraitModule =>
+    ({
+        key,
+        name: key,
+        info: '',
+        kind: 'domestic',
+        selection: { requirements: [requirement], weightType, weight },
+    }) as TraitModule;
+
+describe('legacy speciality selector parity', () => {
+    it('sets positive and negative stat bits in the legacy order', () => {
+        expect(
+            TraitSelector.calcCondGeneric(
+                { leadership: 80, strength: 75, intelligence: 40 },
+                scenarioStat
+            )
+        ).toBe(
+            TraitRequirement.STAT_LEADERSHIP |
+                TraitRequirement.STAT_STRENGTH |
+                TraitRequirement.STAT_NOT_INTEL
+        );
+        expect(
+            TraitSelector.calcCondGeneric(
+                { leadership: 70, strength: 70, intelligence: 70 },
+                scenarioStat
+            )
+        ).toBe(TraitRequirement.STAT_STRENGTH);
+    });
+
+    it('rounds the dex threshold and still consumes a value choice when every dex is zero', () => {
+        const source = new ScriptedRng([0.9], [99, 4]);
+        const result = TraitSelector.calcCondDexterity(new RandUtil(source), [0, 0, 0, 0, 0]);
+        expect(result).toBe(0);
+        expect(source.floatCalls).toBe(1);
+        expect(source.intCalls).toBe(2);
+    });
+
+    it('uses one weighted absolute draw with a relative sentinel before the norm pool', () => {
+        const source = new ScriptedRng([0.5, 0.1], []);
+        const result = TraitSelector.pickDomesticTrait(
+            new RandUtil(source),
+            { leadership: 40, strength: 40, intelligence: 80 },
+            [
+                trait('rare', TraitRequirement.STAT_INTEL, TraitWeightType.PERCENT, 2.5),
+                trait('normal-a', TraitRequirement.STAT_INTEL),
+                trait('normal-b', TraitRequirement.STAT_INTEL),
+            ],
+            [],
+            scenarioStat
+        );
+        expect(result).toBe('normal-a');
+        expect(source.floatCalls).toBe(2);
+    });
+
+    it('retries without previous traits and reruns the war dex RNG path', () => {
+        const source = new ScriptedRng([0.9, 0.9, 0.1], [99, 0, 99, 0]);
+        const result = TraitSelector.pickWarTrait(
+            new RandUtil(source),
+            { leadership: 80, strength: 75, intelligence: 40 },
+            [200, 10, 10, 10, 10],
+            [
+                trait(
+                    'footman',
+                    (TraitRequirement.STAT_LEADERSHIP |
+                        TraitRequirement.REQ_DEXTERITY |
+                        TraitRequirement.ARMY_FOOTMAN |
+                        TraitRequirement.STAT_NOT_INTEL) as TraitRequirement
+                ),
+            ],
+            ['footman'],
+            scenarioStat
+        );
+        expect(result).toBe('footman');
+        expect(source.floatCalls).toBe(3);
+        expect(source.intCalls).toBe(4);
+    });
+});
diff --git a/packages/logic/test/worldBootstrap.test.ts b/packages/logic/test/worldBootstrap.test.ts
index 00d87f8..e47362a 100644
--- a/packages/logic/test/worldBootstrap.test.ts
+++ b/packages/logic/test/worldBootstrap.test.ts
@@ -119,6 +119,8 @@ describe('scenario bootstrap', () => {
         expect(result.snapshot.generals[0]?.crewTypeId).toBe(1200);
         expect(result.snapshot.generals[0]?.role.specialDomestic).toBe('Special');
         expect(result.snapshot.generals[0]?.role.specialWar).toBeNull();
+        expect(result.snapshot.generals[0]?.meta).toMatchObject({ specage: 25, specage2: 30 });
+        expect(result.seed.generals[0]?.meta).toMatchObject({ specage: 25, specage2: 30 });
         expect(result.seed.generals[0]?.npcType).toBe(2);
         expect(result.snapshot.scenarioMeta?.title).toBe('Test Scenario');
     });