diff --git a/packages/backend/src/const.ts b/packages/backend/src/const.ts
index e2203b6b4589931b009c4ea3fb6ff32f51a13103..6c7f2142146e8a627aff382eb2584c6ac3b9de5a 100644
--- a/packages/backend/src/const.ts
+++ b/packages/backend/src/const.ts
@@ -3,6 +3,22 @@ export const MAX_NOTE_TEXT_LENGTH = 3000;
 export const USER_ONLINE_THRESHOLD = 1000 * 60 * 10; // 10min
 export const USER_ACTIVE_THRESHOLD = 1000 * 60 * 60 * 24 * 3; // 3days
 
+//#region hard limits
+// If you change DB_* values, you must also change the DB schema.
+
+/**
+ * Maximum note text length that can be stored in DB.
+ * Surrogate pairs count as one
+ */
+export const DB_MAX_NOTE_TEXT_LENGTH = 8192;
+
+/**
+ * Maximum image description length that can be stored in DB.
+ * Surrogate pairs count as one
+ */
+export const DB_MAX_IMAGE_COMMENT_LENGTH = 512;
+//#endregion
+
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 // 銇撱亾銇惈銇俱倢銇亜銈傘伄銇� application/octet-stream 銇ㄣ仐銇︺儸銈广儩銉炽偣銇曘倢銈�
 // SVG銇疿SS銈掔敓銈€銇仹瑷卞彲銇椼仾銇�
diff --git a/packages/backend/src/core/activitypub/models/ApImageService.ts b/packages/backend/src/core/activitypub/models/ApImageService.ts
index 58fcc8cb53b48d4f6956349924febfc3b3399f8c..d01817b0de7a37e30086d96ea48b5ab1dc8af7b1 100644
--- a/packages/backend/src/core/activitypub/models/ApImageService.ts
+++ b/packages/backend/src/core/activitypub/models/ApImageService.ts
@@ -6,12 +6,12 @@ import type { CacheableRemoteUser } from '@/models/entities/User.js';
 import type { DriveFile } from '@/models/entities/DriveFile.js';
 import { MetaService } from '@/core/MetaService.js';
 import { truncate } from '@/misc/truncate.js';
-import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
+import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/const.js';
 import { DriveService } from '@/core/DriveService.js';
 import type Logger from '@/logger.js';
+import { bindThis } from '@/decorators.js';
 import { ApResolverService } from '../ApResolverService.js';
 import { ApLoggerService } from '../ApLoggerService.js';
-import { bindThis } from '@/decorators.js';
 
 @Injectable()
 export class ApImageService {
diff --git a/packages/backend/src/misc/hard-limits.ts b/packages/backend/src/misc/hard-limits.ts
deleted file mode 100644
index 1039f7335ae9e053e657190050925205012fa017..0000000000000000000000000000000000000000
--- a/packages/backend/src/misc/hard-limits.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-
-// If you change DB_* values, you must also change the DB schema.
-
-/**
- * Maximum note text length that can be stored in DB.
- * Surrogate pairs count as one
- */
-export const DB_MAX_NOTE_TEXT_LENGTH = 8192;
-
-/**
- * Maximum image description length that can be stored in DB.
- * Surrogate pairs count as one
- */
-export const DB_MAX_IMAGE_COMMENT_LENGTH = 512;
diff --git a/packages/backend/src/models/entities/Note.ts b/packages/backend/src/models/entities/Note.ts
index f1a94bd9ce95d518923a6593b902ced2ebf87b89..82d042f0cef8248304df2271abde2650cc9d4331 100644
--- a/packages/backend/src/models/entities/Note.ts
+++ b/packages/backend/src/models/entities/Note.ts
@@ -53,6 +53,7 @@ export class Note {
 	})
 	public threadId: string | null;
 
+	// TODO: varchar銇仐銇熴亜
 	@Column('text', {
 		nullable: true,
 	})
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index 2a19b1df5f7d30792eea82249f8f810263942a3d..795b8460f3688883b7c5f23902f2cbc6d004081f 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -2,7 +2,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { Meta } from '@/models/entities/Meta.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
-import { DB_MAX_NOTE_TEXT_LENGTH } from '@/misc/hard-limits.js';
+import { DB_MAX_NOTE_TEXT_LENGTH } from '@/const.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { DI } from '@/di-symbols.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
diff --git a/packages/backend/src/server/api/endpoints/drive/files/create.ts b/packages/backend/src/server/api/endpoints/drive/files/create.ts
index 3f4485fc8b718b2b3c9e9fc34587873db565a3e7..6abbab027036cdad1e66772af4c488c61896e2de 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/create.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/create.ts
@@ -1,7 +1,7 @@
 import ms from 'ms';
 import { Inject, Injectable } from '@nestjs/common';
 import type { DriveFilesRepository } from '@/models/index.js';
-import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
+import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/const.js';
 import { IdentifiableError } from '@/misc/identifiable-error.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.js';
diff --git a/packages/backend/src/server/api/endpoints/drive/files/update.ts b/packages/backend/src/server/api/endpoints/drive/files/update.ts
index 703f92d8c64a3dba219abcbe89d69166ef55c318..9e2c767277aae2247df255ce91dceefabafbed52 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/update.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/update.ts
@@ -1,6 +1,6 @@
 import { Inject, Injectable } from '@nestjs/common';
 import type { DriveFilesRepository, DriveFoldersRepository } from '@/models/index.js';
-import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
+import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/const.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
diff --git a/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts b/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts
index 19ab03a337211df12ffd5b9c7a6b95f5c0736da0..a17bca5abad1fc00fef8defd72dcaacc138dd872 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts
@@ -1,7 +1,7 @@
 import ms from 'ms';
 import { Inject, Injectable } from '@nestjs/common';
 import type { DriveFilesRepository } from '@/models/index.js';
-import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
+import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/const.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
 import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.js';
diff --git a/packages/backend/src/server/api/endpoints/meta.ts b/packages/backend/src/server/api/endpoints/meta.ts
index f2e6e6aea811f9f0784885fbf23e4f270b011487..05da011979d806bed1078cae064b544b1a682f2f 100644
--- a/packages/backend/src/server/api/endpoints/meta.ts
+++ b/packages/backend/src/server/api/endpoints/meta.ts
@@ -1,8 +1,7 @@
 import { IsNull, MoreThan } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
 import type { AdsRepository, EmojisRepository, UsersRepository } from '@/models/index.js';
-import { DB_MAX_NOTE_TEXT_LENGTH } from '@/misc/hard-limits.js';
-import { MAX_NOTE_TEXT_LENGTH } from '@/const.js';
+import { MAX_NOTE_TEXT_LENGTH, DB_MAX_NOTE_TEXT_LENGTH } from '@/const.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { EmojiEntityService } from '@/core/entities/EmojiEntityService.js';