diff --git a/hwe/sammo/API/City/GetCityInfo.php b/hwe/sammo/API/City/GetCityInfo.php
new file mode 100644
index 00000000..016fd33a
--- /dev/null
+++ b/hwe/sammo/API/City/GetCityInfo.php
@@ -0,0 +1,331 @@
+<?php
+
+namespace sammo\API\City;
+
+use ArrayObject;
+use Ds\Set;
+use sammo\CityConst;
+use sammo\DB;
+use sammo\Enums\APIRecoveryType;
+use sammo\General;
+use sammo\Json;
+use sammo\Session;
+use sammo\Util;
+use sammo\Validator;
+
+use function sammo\calcLeadershipBonus;
+use function sammo\checkLimit;
+use function sammo\checkSecretPermission;
+use function sammo\getAllNationStaticInfo;
+use function sammo\getBillByLevel;
+use function sammo\getDedLevelText;
+use function sammo\getHonor;
+use function sammo\getNationStaticInfo;
+use function sammo\getOfficerLevelText;
+use function sammo\increaseRefresh;
+
+class GetCityInfo extends \sammo\BaseAPI
+{
+  const FAR_CITY = 0;
+  const NEAR_CITY = 1;
+  const ON_CITY = 2;
+  const OUR_NATION = 3;
+
+  static $viewColumns = [
+    'no' => self::NEAR_CITY,
+    'name' => self::NEAR_CITY,
+    'nation' => self::NEAR_CITY,
+    'npc' => self::NEAR_CITY,
+    'injury' => self::NEAR_CITY,
+    'leadership' => self::NEAR_CITY,
+    'strength' => self::NEAR_CITY,
+    'intel' => self::NEAR_CITY,
+
+    'picture' => self::NEAR_CITY,
+    'imgsvr' => self::NEAR_CITY,
+
+    'city' => self::NEAR_CITY,
+
+    'officer_level' => self::NEAR_CITY,
+    'officer_city' => self::NEAR_CITY,
+    'defence_train' => self::OUR_NATION,
+    'crewtype' => self::OUR_NATION,
+    'crew' => self::ON_CITY,
+    'train' => self::OUR_NATION,
+    'atmos' => self::OUR_NATION,
+  ];
+
+  static $columnRemap = [
+    'nation' => 'nationID',
+  ];
+
+  static $customViewColumns = [
+    'officerLevel' => self::NEAR_CITY,
+    'officerLevelText' => self::NEAR_CITY,
+    'lbonus' => self::NEAR_CITY,
+    'reservedCommand' => self::OUR_NATION,
+    'isOurNation' => self::NEAR_CITY,
+  ];
+
+  public function validateArgs(): ?string
+  {
+    $v = new Validator($this->args);
+    $v->rule('int', 'troopID');
+
+    if (!$v->validate()) {
+      return $v->errorStr();
+    }
+    return null;
+  }
+
+  public function getRequiredSessionMode(): int
+  {
+    return static::REQ_GAME_LOGIN | static::REQ_READ_ONLY;
+  }
+
+  private function getOfficerLevel($rawGeneral)
+  {
+    $level = $rawGeneral['officer_level'];
+    return $level;
+  }
+
+  private function filterCity(array $rawCity, int $showLevel)
+  {
+    $cityID = $rawCity['city'];
+    $db = DB::db();
+
+    $officerList = $db->query(
+      'SELECT no, npc, name, nation, picture, imgsvr FROM general WHERE city = %i AND 2 <= officer_level AND officer_level <= 4',
+      $cityID
+    );
+
+    $filteredCity = [
+      'city' => $cityID,
+      'name' => $rawCity['name'],
+      'level' => $rawCity['level'],
+      'nation' => $rawCity['nation'],
+      'supply' => $rawCity['supply'],
+      'pop_max' => $rawCity['pop_max'],
+      'agri_max' => $rawCity['agri_max'],
+      'comm_max' => $rawCity['comm_max'],
+      'secu_max' => $rawCity['secu_max'],
+      'trade' => $rawCity['trade'],
+      'def_max' => $rawCity['def_max'],
+      'wall_max' => $rawCity['wall_max'],
+      'region' => $rawCity['region'],
+      'officerList' => $officerList,
+    ];
+
+    if ($showLevel >= self::ON_CITY) {
+      $filteredCity = array_merge($filteredCity, [
+        'pop' => $rawCity['pop'],
+        'agri' => $rawCity['agri'],
+        'comm' => $rawCity['comm'],
+        'secu' => $rawCity['secu'],
+        'def' => $rawCity['def'],
+        'wall' => $rawCity['wall'],
+        'officer_set' => $rawCity['officer_set'],
+      ]);
+    }
+
+    return $filteredCity;
+  }
+
+  private function getGeneralList(int $cityID, int $nationID, int $showLevel)
+  {
+    if ($showLevel == self::FAR_CITY) {
+      return [
+        'column' => [],
+        'list' => []
+      ];
+    }
+    $db = DB::db();
+
+    $nationStaticList = getAllNationStaticInfo();
+
+    $rawGeneralList = Util::convertArrayToDict($db->query('SELECT %l from general WHERE city = %i ORDER BY turntime ASC', Util::formatListOfBackticks(array_keys(static::$viewColumns)), $cityID), 'city');
+    $ourNationGeneralIDList = new Set();
+    foreach ($rawGeneralList as $rawGeneral) {
+      if ($rawGeneral['nation'] == $nationID) {
+        $ourNationGeneralIDList->add($rawGeneral['no']);
+      }
+    }
+
+    $reservedCommand = [];
+    $reservedCommandTargetGeneralIDList = [];
+
+    foreach ($rawGeneralList as $rawGeneral) {
+      if ($rawGeneral['nation'] != $nationID) {
+        continue;
+      }
+      if ($rawGeneral['npc'] < 2) {
+        $reservedCommandTargetGeneralIDList[$rawGeneral['no']] = $rawGeneral['no'];
+      }
+    }
+
+    if ($reservedCommandTargetGeneralIDList) {
+      $rawTurnList = $db->query(
+        'SELECT general_id, turn_idx, action, arg, brief FROM general_turn WHERE general_id IN %li AND turn_idx < 5 ORDER BY general_id asc, turn_idx asc',
+        array_values($reservedCommandTargetGeneralIDList)
+      );
+
+      foreach ($rawTurnList as $rawTurn) {
+        [
+          'general_id' => $generalID,
+          'action' => $action,
+          'arg' => $arg,
+          'brief' => $brief,
+        ] = $rawTurn;
+        if (!key_exists($generalID, $reservedCommand)) {
+          $reservedCommand[$generalID] = [];
+        }
+        $reservedCommand[$generalID][] = [
+          'action' => $action,
+          'arg' => $arg,
+          'brief' => $brief
+        ];
+      }
+    }
+
+    $specialViewFilter = [
+      'officerLevel' => fn ($rawGeneral) => $this->getOfficerLevel($rawGeneral),
+      'officerLevelText' => fn ($rawGeneral) => getOfficerLevelText($this->getOfficerLevel($rawGeneral), $nationStaticList[$rawGeneral['nation']]['level']),
+      'lbonus' => fn ($rawGeneral) => calcLeadershipBonus($rawGeneral['officer_level'], $nationStaticList[$rawGeneral['nation']]['level']),
+      'reservedCommand' => fn ($rawGeneral) => $reservedCommand[$rawGeneral['no']] ?? null,
+      'isOurNation' => fn ($rawGeneral) => $rawGeneral['nation'] == $nationID,
+    ];
+
+    $showFullColumn = $showLevel == self::OUR_NATION || $ourNationGeneralIDList->count() > 0;
+
+    $resultColumns = [];
+    foreach (static::$viewColumns as $column => $reqShowLevel) {
+      if (!$showFullColumn && $reqShowLevel > $showLevel) {
+        continue;
+      }
+      if (key_exists($column, static::$columnRemap)) {
+        $newColumn = static::$columnRemap[$column];
+        if ($newColumn !== null) {
+          $resultColumns[$newColumn] = $column;
+        }
+      } else {
+        $resultColumns[$column] = $column;
+      }
+    }
+
+    foreach (static::$customViewColumns as $column => $reqShowLevel) {
+      if (!$showFullColumn && $reqShowLevel > $showLevel) {
+        continue;
+      }
+      $resultColumns[$column] = $column;
+    }
+
+    $generalList = [];
+    foreach ($rawGeneralList as $rawGeneral) {
+      $item = [];
+      foreach ($resultColumns as $column) {
+        $reqShowLevel = static::$viewColumns[$column];
+
+        if ($rawGeneral['nation'] != $nationID && $reqShowLevel == self::OUR_NATION) {
+          $item[] = null;
+          continue;
+        }
+
+        if (key_exists($column, $specialViewFilter)) {
+          $value = $specialViewFilter[$column]($rawGeneral);
+        } else {
+          $value = $rawGeneral[$column];
+        }
+        $item[] = $value;
+      }
+
+      $generalList[] = $item;
+    }
+    return [
+      'column' => array_keys($resultColumns),
+      'list' => $generalList,
+    ];
+  }
+
+  private function calcShowLevel(int $cityID, int $currentCityID, int $nationID, Set $cityList, bool $isSpyPresent): int
+  {
+    $db = DB::db();
+    if ($cityList->contains($currentCityID)) {
+      return self::OUR_NATION;
+    }
+    if ($cityID == $currentCityID) {
+      return self::ON_CITY;
+    }
+    if ($isSpyPresent) {
+      return self::ON_CITY;
+    }
+
+    $existsGeneralID = $db->queryFirstField(
+      'SELECT no FROM general WHERE city = %i AND nation = %i LIMIT 1',
+      $cityID,
+      $nationID
+    );
+
+    if ($existsGeneralID) {
+      return self::ON_CITY;
+    }
+
+    $cityConstObj = CityConst::byID($cityID);
+
+    $nearCityIDList = array_keys($cityConstObj->path);
+    foreach ($nearCityIDList as $nearCityID) {
+      if ($cityList->contains($nearCityID)) {
+        return self::NEAR_CITY;
+      }
+    }
+
+    return self::FAR_CITY;
+  }
+
+  public function launch(Session $session, ?\DateTimeInterface $modifiedSince, ?string $reqEtag): null | string | array | APIRecoveryType
+  {
+    increaseRefresh("도시정보", 1);
+
+    $db = DB::db();
+
+    $gameStor = \sammo\KVStorage::getStorage($db, 'game_env');
+    $lastExecuted = $gameStor->getValue('turntime');
+
+    $me = $db->queryFirstRow('SELECT con, turntime, belong, city, nation, officer_level, permission, penalty FROM general WHERE owner=%i', $session->getUserID());
+
+    if (key_exists('cityID', $this->args)) {
+      $cityID = (int)$this->args['cityID'];
+    } else {
+      $cityID = $me['city'];
+    }
+
+    $con = checkLimit($me['con']);
+    if ($con >= 2) {
+      return '접속 제한중입니다. 1턴 이내에 너무 많은 갱신을 하셨습니다.';
+    }
+
+    $nationID = $me['nation'];
+    $currentCityID = $me['city'];
+    //TODO: 조건 조사
+
+    $cityList = new Set($db->queryFirstField('SELECT city FROM city WHERE nation=%i', $nationID));
+
+    $spyList = JSON::decode($db->queryFirstField('SELECT spy FROM nation WHERE nation=%i', $nationID));
+    $showLevel = $this->calcShowLevel($cityID, $currentCityID, $nationID, $cityList, key_exists($cityID, $spyList));
+
+    $rawCity = $db->queryFirstRow('SELECT * FROM city WHERE no=%i', $cityID);
+    $filteredCity = $this->filterCity($rawCity, $showLevel);
+
+    $result = [
+      'result' => true,
+      'lastExcuted' => $lastExecuted,
+      'cityInfo' => $filteredCity,
+      'spyList' => $spyList,
+      'nationCityList' => $cityList->toArray(),
+      'myGeneralID' => $session->generalID,
+      'currentCityID' => $currentCityID,
+      'cityGeneralList' => $this->getGeneralList($cityID, $nationID, $showLevel)
+    ];
+
+    return $result;
+  }
+}