diff --git a/packages/backend/src/models/json-schema/user.ts b/packages/backend/src/models/json-schema/user.ts
index c7f86635da..952cd6bf80 100644
--- a/packages/backend/src/models/json-schema/user.ts
+++ b/packages/backend/src/models/json-schema/user.ts
@@ -148,6 +148,9 @@ export const packedUserLiteSchema = {
 		emojis: {
 			type: 'object',
 			nullable: false, optional: false,
+			additionalProperties: {
+				type: 'string',
+			},
 		},
 		onlineStatus: {
 			type: 'string',
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
index e32a19120d..796f273330 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
@@ -31,7 +31,10 @@ export const meta = {
 		},
 	},
 
-	ref: 'EmojiDetailed',
+	res: {
+		type: 'object',
+		ref: 'EmojiDetailed',
+	},
 } as const;
 
 export const paramDef = {
diff --git a/packages/misskey-js/etc/misskey-js.api.md b/packages/misskey-js/etc/misskey-js.api.md
index a2d5a4f514..b5e7ec7548 100644
--- a/packages/misskey-js/etc/misskey-js.api.md
+++ b/packages/misskey-js/etc/misskey-js.api.md
@@ -124,6 +124,9 @@ type AdminEmojiAddAliasesBulkRequest = operations['admin/emoji/add-aliases-bulk'
 // @public (undocumented)
 type AdminEmojiAddRequest = operations['admin/emoji/add']['requestBody']['content']['application/json'];
 
+// @public (undocumented)
+type AdminEmojiAddResponse = operations['admin/emoji/add']['responses']['200']['content']['application/json'];
+
 // @public (undocumented)
 type AdminEmojiCopyRequest = operations['admin/emoji/copy']['requestBody']['content']['application/json'];
 
@@ -1154,6 +1157,7 @@ declare namespace entities {
         AdminDriveShowFileResponse,
         AdminEmojiAddAliasesBulkRequest,
         AdminEmojiAddRequest,
+        AdminEmojiAddResponse,
         AdminEmojiCopyRequest,
         AdminEmojiCopyResponse,
         AdminEmojiDeleteBulkRequest,
diff --git a/packages/misskey-js/src/autogen/endpoint.ts b/packages/misskey-js/src/autogen/endpoint.ts
index 595d0d66c0..656ac28246 100644
--- a/packages/misskey-js/src/autogen/endpoint.ts
+++ b/packages/misskey-js/src/autogen/endpoint.ts
@@ -35,6 +35,7 @@ import type {
 	AdminDriveShowFileResponse,
 	AdminEmojiAddAliasesBulkRequest,
 	AdminEmojiAddRequest,
+	AdminEmojiAddResponse,
 	AdminEmojiCopyRequest,
 	AdminEmojiCopyResponse,
 	AdminEmojiDeleteBulkRequest,
@@ -578,7 +579,7 @@ export type Endpoints = {
 	'admin/drive/files': { req: AdminDriveFilesRequest; res: AdminDriveFilesResponse };
 	'admin/drive/show-file': { req: AdminDriveShowFileRequest; res: AdminDriveShowFileResponse };
 	'admin/emoji/add-aliases-bulk': { req: AdminEmojiAddAliasesBulkRequest; res: EmptyResponse };
-	'admin/emoji/add': { req: AdminEmojiAddRequest; res: EmptyResponse };
+	'admin/emoji/add': { req: AdminEmojiAddRequest; res: AdminEmojiAddResponse };
 	'admin/emoji/copy': { req: AdminEmojiCopyRequest; res: AdminEmojiCopyResponse };
 	'admin/emoji/delete-bulk': { req: AdminEmojiDeleteBulkRequest; res: EmptyResponse };
 	'admin/emoji/delete': { req: AdminEmojiDeleteRequest; res: EmptyResponse };
diff --git a/packages/misskey-js/src/autogen/entities.ts b/packages/misskey-js/src/autogen/entities.ts
index e7ed146c43..a936931e99 100644
--- a/packages/misskey-js/src/autogen/entities.ts
+++ b/packages/misskey-js/src/autogen/entities.ts
@@ -37,6 +37,7 @@ export type AdminDriveShowFileRequest = operations['admin/drive/show-file']['req
 export type AdminDriveShowFileResponse = operations['admin/drive/show-file']['responses']['200']['content']['application/json'];
 export type AdminEmojiAddAliasesBulkRequest = operations['admin/emoji/add-aliases-bulk']['requestBody']['content']['application/json'];
 export type AdminEmojiAddRequest = operations['admin/emoji/add']['requestBody']['content']['application/json'];
+export type AdminEmojiAddResponse = operations['admin/emoji/add']['responses']['200']['content']['application/json'];
 export type AdminEmojiCopyRequest = operations['admin/emoji/copy']['requestBody']['content']['application/json'];
 export type AdminEmojiCopyResponse = operations['admin/emoji/copy']['responses']['200']['content']['application/json'];
 export type AdminEmojiDeleteBulkRequest = operations['admin/emoji/delete-bulk']['requestBody']['content']['application/json'];
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index d2dd277cc2..e508b5c434 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -3588,7 +3588,9 @@ export type components = {
         faviconUrl: string | null;
         themeColor: string | null;
       };
-      emojis: Record<string, never>;
+      emojis: {
+        [key: string]: string;
+      };
       /** @enum {string} */
       onlineStatus: 'unknown' | 'online' | 'active' | 'offline';
       badgeRoles?: ({
@@ -6478,9 +6480,11 @@ export type operations = {
       };
     };
     responses: {
-      /** @description OK (without any results) */
-      204: {
-        content: never;
+      /** @description OK (with results) */
+      200: {
+        content: {
+          'application/json': components['schemas']['EmojiDetailed'];
+        };
       };
       /** @description Client error */
       400: {