diff --git a/src/intTest/resources/sql/note/httpSignature認証でフォロワーがfollowers投稿を取得できる.sql b/src/intTest/resources/sql/note/httpSignature認証でフォロワーがfollowers投稿を取得できる.sql
index f1a91192..53d28e59 100644
--- a/src/intTest/resources/sql/note/httpSignature認証でフォロワーがfollowers投稿を取得できる.sql
+++ b/src/intTest/resources/sql/note/httpSignature認証でフォロワーがfollowers投稿を取得できる.sql
@@ -1,5 +1,5 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (8, 'test-user8', 'example.com', 'Im test-user8.', 'THis account is test-user8.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8',
         'https://example.com/users/test-user8/inbox',
@@ -7,10 +7,10 @@ VALUES (8, 'test-user8', 'example.com', 'Im test-user8.', 'THis account is test-
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user8#pubkey', 'https://example.com/users/test-user8/following',
-        'https://example.com/users/test-user8/followers');
+        'https://example.com/users/test-user8/followers', null);
 
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (9, 'test-user9', 'follower.example.com', 'Im test-user9.', 'THis account is test-user9.',
         null,
         'https://follower.example.com/users/test-user9/inbox',
@@ -19,7 +19,7 @@ VALUES (9, 'test-user9', 'follower.example.com', 'Im test-user9.', 'THis account
         null, 12345678,
         'https://follower.example.com/users/test-user9#pubkey',
         'https://follower.example.com/users/test-user9/following',
-        'https://follower.example.com/users/test-user9/followers');
+        'https://follower.example.com/users/test-user9/followers', null);
 
 insert into USERS_FOLLOWERS (USER_ID, FOLLOWER_ID)
 VALUES (8, 9);
diff --git a/src/intTest/resources/sql/note/httpSignature認証でフォロワーがpublic投稿を取得できる.sql b/src/intTest/resources/sql/note/httpSignature認証でフォロワーがpublic投稿を取得できる.sql
index 20a7e5ba..e0fe1f83 100644
--- a/src/intTest/resources/sql/note/httpSignature認証でフォロワーがpublic投稿を取得できる.sql
+++ b/src/intTest/resources/sql/note/httpSignature認証でフォロワーがpublic投稿を取得できる.sql
@@ -1,5 +1,5 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (4, 'test-user4', 'example.com', 'Im test user4.', 'THis account is test user4.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8',
         'https://example.com/users/test-user4/inbox',
@@ -7,10 +7,10 @@ VALUES (4, 'test-user4', 'example.com', 'Im test user4.', 'THis account is test
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user4#pubkey', 'https://example.com/users/test-user4/following',
-        'https://example.com/users/test-user4/followers');
+        'https://example.com/users/test-user4/followers', null);
 
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (5, 'test-user5', 'follower.example.com', 'Im test user5.', 'THis account is test user5.',
         null,
         'https://follower.example.com/users/test-user5/inbox',
@@ -19,7 +19,7 @@ VALUES (5, 'test-user5', 'follower.example.com', 'Im test user5.', 'THis account
         null, 12345678,
         'https://follower.example.com/users/test-user5#pubkey',
         'https://follower.example.com/users/test-user5/following',
-        'https://follower.example.com/users/test-user5/followers');
+        'https://follower.example.com/users/test-user5/followers', null);
 
 insert into USERS_FOLLOWERS (USER_ID, FOLLOWER_ID)
 VALUES (4, 5);
diff --git a/src/intTest/resources/sql/note/httpSignature認証でフォロワーがunlisted投稿を取得できる.sql b/src/intTest/resources/sql/note/httpSignature認証でフォロワーがunlisted投稿を取得できる.sql
index cb7707a9..82c7cff9 100644
--- a/src/intTest/resources/sql/note/httpSignature認証でフォロワーがunlisted投稿を取得できる.sql
+++ b/src/intTest/resources/sql/note/httpSignature認証でフォロワーがunlisted投稿を取得できる.sql
@@ -1,5 +1,5 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (6, 'test-user6', 'example.com', 'Im test-user6.', 'THis account is test-user6.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8',
         'https://example.com/users/test-user6/inbox',
@@ -7,10 +7,10 @@ VALUES (6, 'test-user6', 'example.com', 'Im test-user6.', 'THis account is test-
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user6#pubkey', 'https://example.com/users/test-user6/following',
-        'https://example.com/users/test-user6/followers');
+        'https://example.com/users/test-user6/followers', null);
 
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (7, 'test-user7', 'follower.example.com', 'Im test-user7.', 'THis account is test-user7.',
         null,
         'https://follower.example.com/users/test-user7/inbox',
@@ -19,7 +19,7 @@ VALUES (7, 'test-user7', 'follower.example.com', 'Im test-user7.', 'THis account
         null, 12345678,
         'https://follower.example.com/users/test-user7#pubkey',
         'https://follower.example.com/users/test-user7/following',
-        'https://follower.example.com/users/test-user7/followers');
+        'https://follower.example.com/users/test-user7/followers', null);
 
 insert into USERS_FOLLOWERS (USER_ID, FOLLOWER_ID)
 VALUES (6, 7);
diff --git a/src/intTest/resources/sql/note/メディア付き投稿はattachmentにDocumentとして画像が存在する.sql b/src/intTest/resources/sql/note/メディア付き投稿はattachmentにDocumentとして画像が存在する.sql
index 810c33d4..2f0b65a7 100644
--- a/src/intTest/resources/sql/note/メディア付き投稿はattachmentにDocumentとして画像が存在する.sql
+++ b/src/intTest/resources/sql/note/メディア付き投稿はattachmentにDocumentとして画像が存在する.sql
@@ -1,5 +1,5 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (11, 'test-user11', 'example.com', 'Im test-user11.', 'THis account is test-user11.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8',
         'https://example.com/users/test-user11/inbox',
@@ -7,7 +7,7 @@ VALUES (11, 'test-user11', 'example.com', 'Im test-user11.', 'THis account is te
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user11#pubkey', 'https://example.com/users/test-user11/following',
-        'https://example.com/users/test-user11/followers');
+        'https://example.com/users/test-user11/followers', null);
 
 insert into POSTS (ID, "userId", OVERVIEW, TEXT, "createdAt", VISIBILITY, URL, "repostId", "replyId", SENSITIVE, AP_ID)
 VALUES (1242, 11, null, 'test post', 12345680, 0, 'https://example.com/users/test-user11/posts/1242', null, null, false,
diff --git a/src/intTest/resources/sql/note/リプライになっている投稿はinReplyToが存在する.sql b/src/intTest/resources/sql/note/リプライになっている投稿はinReplyToが存在する.sql
index cf6f842f..d32ffce0 100644
--- a/src/intTest/resources/sql/note/リプライになっている投稿はinReplyToが存在する.sql
+++ b/src/intTest/resources/sql/note/リプライになっている投稿はinReplyToが存在する.sql
@@ -1,5 +1,5 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (10, 'test-user10', 'example.com', 'Im test-user10.', 'THis account is test-user10.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8',
         'https://example.com/users/test-user10/inbox',
@@ -7,7 +7,7 @@ VALUES (10, 'test-user10', 'example.com', 'Im test-user10.', 'THis account is te
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user10#pubkey', 'https://example.com/users/test-user10/following',
-        'https://example.com/users/test-user10/followers');
+        'https://example.com/users/test-user10/followers', null);
 
 insert into POSTS (ID, "userId", OVERVIEW, TEXT, "createdAt", VISIBILITY, URL, "repostId", "replyId", SENSITIVE, AP_ID)
 VALUES (1240, 10, null, 'test post', 12345680, 0, 'https://example.com/users/test-user10/posts/1240', null, null, false,
diff --git a/src/intTest/resources/sql/note/匿名でfollowers投稿を取得しようとすると404.sql b/src/intTest/resources/sql/note/匿名でfollowers投稿を取得しようとすると404.sql
index 71ee8f8d..1da76bf1 100644
--- a/src/intTest/resources/sql/note/匿名でfollowers投稿を取得しようとすると404.sql
+++ b/src/intTest/resources/sql/note/匿名でfollowers投稿を取得しようとすると404.sql
@@ -1,5 +1,5 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (3, 'test-user3', 'example.com', 'Im test user3.', 'THis account is test user3.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8',
         'https://example.com/users/test-user3/inbox',
@@ -7,7 +7,7 @@ VALUES (3, 'test-user3', 'example.com', 'Im test user3.', 'THis account is test
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user3#pubkey', 'https://example.com/users/test-user3/following',
-        'https://example.com/users/test-user3/followers');
+        'https://example.com/users/test-user3/followers', null);
 
 insert into POSTS (ID, "userId", OVERVIEW, TEXT, "createdAt", VISIBILITY, URL, "repostId", "replyId", SENSITIVE, AP_ID)
 VALUES (1236, 3, null, 'test post', 12345680, 2, 'https://example.com/users/test-user3/posts/1236', null, null, false,
diff --git a/src/intTest/resources/sql/note/匿名でpublic投稿を取得できる.sql b/src/intTest/resources/sql/note/匿名でpublic投稿を取得できる.sql
index 23f38afc..e8362d0f 100644
--- a/src/intTest/resources/sql/note/匿名でpublic投稿を取得できる.sql
+++ b/src/intTest/resources/sql/note/匿名でpublic投稿を取得できる.sql
@@ -1,12 +1,12 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (1, 'test-user', 'example.com', 'Im test user.', 'THis account is test user.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8', 'https://example.com/users/test-user/inbox',
         'https://example.com/users/test-user/outbox', 'https://example.com/users/test-user',
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user#pubkey', 'https://example.com/users/test-user/following',
-        'https://example.com/users/test-users/followers');
+        'https://example.com/users/test-users/followers', null);
 
 insert into POSTS (ID, "userId", OVERVIEW, TEXT, "createdAt", VISIBILITY, URL, "repostId", "replyId", SENSITIVE, AP_ID)
 VALUES (1234, 1, null, 'test post', 12345680, 0, 'https://example.com/users/test-user/posts/1234', null, null, false,
diff --git a/src/intTest/resources/sql/note/匿名でunlisted投稿を取得できる.sql b/src/intTest/resources/sql/note/匿名でunlisted投稿を取得できる.sql
index 88c8bf9a..fa04a3ce 100644
--- a/src/intTest/resources/sql/note/匿名でunlisted投稿を取得できる.sql
+++ b/src/intTest/resources/sql/note/匿名でunlisted投稿を取得できる.sql
@@ -1,5 +1,5 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (2, 'test-user2', 'example.com', 'Im test user2.', 'THis account is test user2.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8',
         'https://example.com/users/test-user2/inbox',
@@ -7,7 +7,7 @@ VALUES (2, 'test-user2', 'example.com', 'Im test user2.', 'THis account is test
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user2#pubkey', 'https://example.com/users/test-user2/following',
-        'https://example.com/users/test-user2/followers');
+        'https://example.com/users/test-user2/followers', null);
 
 insert into POSTS (ID, "userId", OVERVIEW, TEXT, "createdAt", VISIBILITY, URL, "repostId", "replyId", SENSITIVE, AP_ID)
 VALUES (1235, 2, null, 'test post', 12345680, 1, 'https://example.com/users/test-user2/posts/1235', null, null, false,
diff --git a/src/intTest/resources/sql/test-user.sql b/src/intTest/resources/sql/test-user.sql
index 8b6df0d4..a21d1795 100644
--- a/src/intTest/resources/sql/test-user.sql
+++ b/src/intTest/resources/sql/test-user.sql
@@ -1,9 +1,9 @@
 insert into "USERS" (ID, NAME, DOMAIN, SCREEN_NAME, DESCRIPTION, PASSWORD, INBOX, OUTBOX, URL, PUBLIC_KEY, PRIVATE_KEY,
-                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS)
+                     CREATED_AT, KEY_ID, FOLLOWING, FOLLOWERS, INSTANCE)
 VALUES (1, 'test-user', 'example.com', 'Im test user.', 'THis account is test user.',
         '5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8', 'https://example.com/users/test-user/inbox',
         'https://example.com/users/test-user/outbox', 'https://example.com/users/test-user',
         '-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----',
         '-----BEGIN PRIVATE KEY-----...-----END PRIVATE KEY-----', 12345678,
         'https://example.com/users/test-user#pubkey', 'https://example.com/users/test-user/following',
-        'https://example.com/users/test-users/followers');
+        'https://example.com/users/test-users/followers', null);
diff --git a/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt b/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt
index 5d4a860d..edd79195 100644
--- a/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/InstanceRepositoryImpl.kt
@@ -88,4 +88,6 @@ object Instance : Table("instance") {
     val isMuted = bool("is_muted")
     val moderationNote = varchar("moderation_note", 10000)
     val createdAt = timestamp("created_at")
+
+    override val primaryKey: PrimaryKey = PrimaryKey(id)
 }
diff --git a/src/test/kotlin/dev/usbharu/hideout/activitypub/service/common/APResourceResolveServiceImplTest.kt b/src/test/kotlin/dev/usbharu/hideout/activitypub/service/common/APResourceResolveServiceImplTest.kt
index 46b50898..5f167d6b 100644
--- a/src/test/kotlin/dev/usbharu/hideout/activitypub/service/common/APResourceResolveServiceImplTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/activitypub/service/common/APResourceResolveServiceImplTest.kt
@@ -1,6 +1,7 @@
 package dev.usbharu.hideout.activitypub.service.common
 
 import dev.usbharu.hideout.core.domain.model.user.UserRepository
+import dev.usbharu.hideout.core.service.resource.InMemoryCacheManager
 import kotlinx.coroutines.async
 import kotlinx.coroutines.awaitAll
 import kotlinx.coroutines.test.runTest
diff --git a/src/test/kotlin/dev/usbharu/hideout/core/service/user/UserServiceTest.kt b/src/test/kotlin/dev/usbharu/hideout/core/service/user/UserServiceTest.kt
index a39dbd70..65a88e8b 100644
--- a/src/test/kotlin/dev/usbharu/hideout/core/service/user/UserServiceTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/core/service/user/UserServiceTest.kt
@@ -41,6 +41,7 @@ class UserServiceTest {
                 mock(),
                 userBuilder,
                 testApplicationConfig,
+                mock()
             )
         userService.createLocalUser(UserCreateDto("test", "testUser", "XXXXXXXXXXXXX", "test"))
         verify(userRepository, times(1)).save(any())
@@ -67,7 +68,7 @@ class UserServiceTest {
             onBlocking { nextId() } doReturn 113345L
         }
         val userService =
-            UserServiceImpl(userRepository, mock(), mock(), mock(), mock(), userBuilder, testApplicationConfig)
+            UserServiceImpl(userRepository, mock(), mock(), mock(), mock(), userBuilder, testApplicationConfig, mock())
         val user = RemoteUserCreateDto(
             name = "test",
             domain = "remote.example.com",
@@ -79,7 +80,8 @@ class UserServiceTest {
             publicKey = "-----BEGIN PUBLIC KEY-----...-----END PUBLIC KEY-----",
             keyId = "a",
             following = "",
-            followers = ""
+            followers = "",
+            sharedInbox = null
         )
         userService.createRemoteUser(user)
         verify(userRepository, times(1)).save(any())