diff --git a/hwe/ts/common_deprecated.ts b/hwe/ts/common_deprecated.ts
index a24273e5..f9ba81d6 100644
--- a/hwe/ts/common_deprecated.ts
+++ b/hwe/ts/common_deprecated.ts
@@ -1,5 +1,5 @@
 import { exportWindow } from "@util/exportWindow";
-import { activateFlip, errUnknown, errUnknownToast, quickReject, initTooltip } from "@/common_legacy";
+import { activateFlip, errUnknown, initTooltip } from "@/common_legacy";
 import { isBrightColor } from "@util/isBrightColor";
 import { getIconPath } from "@util/getIconPath";
 import { mb_strwidth } from "@util/mb_strwidth";
@@ -41,7 +41,5 @@ exportWindow(TemplateEngine, 'TemplateEngine');
 exportWindow(getIconPath, 'getIconPath');
 exportWindow(activateFlip, 'activateFlip');
 exportWindow(errUnknown, 'errUnknown');
-exportWindow(errUnknownToast, 'errUnknownToast');
-exportWindow(quickReject, 'quickReject');
 exportWindow(nl2br, 'nl2br');
 exportWindow(initTooltip, 'initTooltip');
\ No newline at end of file
diff --git a/hwe/ts/common_legacy.ts b/hwe/ts/common_legacy.ts
index 0a200a16..780a7f13 100644
--- a/hwe/ts/common_legacy.ts
+++ b/hwe/ts/common_legacy.ts
@@ -1,5 +1,5 @@
 import $ from "jquery";
-import { Tooltip } from "bootstrap";
+import {  Tooltip } from "bootstrap";
 import { trim } from "lodash";
 
 /**
@@ -127,24 +127,6 @@ export function errUnknown(): void {
     alert('작업을 실패했습니다.');
 }
 
-export function errUnknownToast(): void {
-    $.toast({
-        title: '에러!',
-        content: '작업을 실패했습니다.',
-        type: 'danger',
-        delay: 5000
-    });
-}
-
-export function quickReject<T>(errMsg: string): JQuery.Promise<T> {
-    if (errMsg === undefined) {
-        errMsg = '작업을 실패했습니다.';
-    }
-    const deferred = $.Deferred();
-    void deferred.reject(errMsg);
-    return deferred.promise();
-}
-
 /*
 function br2nl (text) {
     return text.replace(/<\s*\/?br\s*[\/]?>/gi, '\n');
diff --git a/hwe/ts/main.ts b/hwe/ts/main.ts
index f3468123..973f307d 100644
--- a/hwe/ts/main.ts
+++ b/hwe/ts/main.ts
@@ -15,7 +15,7 @@ import { unwrap } from '@util/unwrap';
 import { auto500px } from '@util/auto500px';
 import { htmlReady } from '@util/htmlReady';
 
-$(function ($) {
+htmlReady(() => {
     $('.refreshPage').click(function () {
         document.location.reload();
         return false;
@@ -36,6 +36,13 @@ $(function ($) {
 
     activateFlip();
     initTooltip();
+
+    const customCSS = localStorage.getItem('sam_customCSS');
+    if (customCSS) {
+        const $style = $('<style type="text/css"></style>');
+        $style.text(customCSS);
+        $style.appendTo($('head'));
+    }
 });
 
 (() => {
@@ -47,7 +54,7 @@ $(function ($) {
     let nationMsgHeight: number | undefined = undefined;
 
     function init() {
-        if(finInit){
+        if (finInit) {
             return false;
         }
         const _nationMsgBox = document.getElementById('nation-msg-box');