diff --git a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/reject/ApRejectProcessor.kt b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/reject/ApRejectProcessor.kt
new file mode 100644
index 00000000..53e4c4bb
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/reject/ApRejectProcessor.kt
@@ -0,0 +1,51 @@
+package dev.usbharu.hideout.activitypub.service.activity.reject
+
+import dev.usbharu.hideout.activitypub.domain.model.Follow
+import dev.usbharu.hideout.activitypub.domain.model.Reject
+import dev.usbharu.hideout.activitypub.service.common.AbstractActivityPubProcessor
+import dev.usbharu.hideout.activitypub.service.common.ActivityPubProcessContext
+import dev.usbharu.hideout.activitypub.service.common.ActivityType
+import dev.usbharu.hideout.application.external.Transaction
+import dev.usbharu.hideout.core.query.UserQueryService
+import dev.usbharu.hideout.core.service.relationship.RelationshipService
+import org.springframework.stereotype.Service
+
+
+@Service
+class ApRejectProcessor(
+    private val relationshipService: RelationshipService,
+    private val userQueryService: UserQueryService,
+    transaction: Transaction
+) :
+    AbstractActivityPubProcessor<Reject>(transaction) {
+    override suspend fun internalProcess(activity: ActivityPubProcessContext<Reject>) {
+
+        val activityType = activity.activity.apObject.type.firstOrNull { it == "Follow" }
+
+        if (activityType == null) {
+            logger.warn("FAILED Process Reject Activity type: {}", activity.activity.apObject.type)
+            return
+        }
+        when (activityType) {
+            "Follow" -> {
+                val user = userQueryService.findByUrl(activity.activity.actor)
+
+                activity.activity.apObject as Follow
+
+                val actor = activity.activity.apObject.actor
+
+                val target = userQueryService.findByUrl(actor)
+
+                logger.debug("REJECT Follow user {} target {}", user.url, target.url)
+
+                relationshipService.rejectFollowRequest(user.id, target.id)
+            }
+
+            else -> {}
+        }
+    }
+
+    override fun isSupported(activityType: ActivityType): Boolean = activityType == ActivityType.Reject
+
+    override fun type(): Class<Reject> = Reject::class.java
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/core/service/relationship/RelationshipServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/core/service/relationship/RelationshipServiceImpl.kt
index c056a381..a94332f9 100644
--- a/src/main/kotlin/dev/usbharu/hideout/core/service/relationship/RelationshipServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/core/service/relationship/RelationshipServiceImpl.kt
@@ -166,7 +166,7 @@ class RelationshipServiceImpl(
     }
 
     override suspend fun rejectFollowRequest(userId: Long, targetId: Long) {
-        val relationship = relationshipRepository.findByUserIdAndTargetUserId(userId, targetId)
+        val relationship = relationshipRepository.findByUserIdAndTargetUserId(targetId, userId)
 
         if (relationship == null) {
             logger.warn("FAILED Follow Request Not Found. (Relationship) userId: {} targetId: {}", userId, targetId)
diff --git a/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/account/MastodonAccountApiController.kt b/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/account/MastodonAccountApiController.kt
index 8311596f..f9af1c7d 100644
--- a/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/account/MastodonAccountApiController.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/account/MastodonAccountApiController.kt
@@ -133,4 +133,14 @@ class MastodonAccountApiController(
 
         return ResponseEntity.ok(unfollow)
     }
+
+    override suspend fun apiV1AccountsIdRemoveFromFollowersPost(id: String): ResponseEntity<Relationship> {
+        val principal = SecurityContextHolder.getContext().getAuthentication().principal as Jwt
+
+        val userid = principal.getClaim<String>("uid").toLong()
+
+        val removeFromFollowers = accountApiService.removeFromFollowers(userid, id.toLong())
+
+        return ResponseEntity.ok(removeFromFollowers)
+    }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt b/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt
index 955603cb..f639afc8 100644
--- a/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/mastodon/service/account/AccountApiService.kt
@@ -44,6 +44,7 @@ interface AccountApiService {
     suspend fun block(userid: Long, target: Long): Relationship
     suspend fun unblock(userid: Long, target: Long): Relationship
     suspend fun unfollow(userid: Long, target: Long): Relationship
+    suspend fun removeFromFollowers(userid: Long, target: Long): Relationship
 }
 
 @Service
@@ -146,6 +147,12 @@ class AccountApiServiceImpl(
         return@transaction fetchRelationship(userid, target)
     }
 
+    override suspend fun removeFromFollowers(userid: Long, target: Long): Relationship = transaction.transaction {
+        relationshipService.rejectFollowRequest(userid, target)
+
+        return@transaction fetchRelationship(userid, target)
+    }
+
     private fun from(account: Account): CredentialAccount {
         return CredentialAccount(
             id = account.id,
diff --git a/src/main/resources/openapi/mastodon.yaml b/src/main/resources/openapi/mastodon.yaml
index fa3ea430..a43da7de 100644
--- a/src/main/resources/openapi/mastodon.yaml
+++ b/src/main/resources/openapi/mastodon.yaml
@@ -349,7 +349,26 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/Relationship"
-
+  /api/v1/accounts/{id}/remove_from_followers:
+    post:
+      tags:
+        - account
+      security:
+        - OAuth2:
+            - "write:follows"
+      parameters:
+        - in: path
+          name: id
+          required: true
+          schema:
+            type: string
+      responses:
+        200:
+          description: 成功
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Relationship"
 
   /api/v1/accounts/{id}/statuses:
     get: