diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/member/CreatorAdminMemberService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/member/CreatorAdminMemberService.kt
index 5d3fe966..4f04be7f 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/member/CreatorAdminMemberService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/member/CreatorAdminMemberService.kt
@@ -6,6 +6,7 @@ import kr.co.vividnext.sodalive.fcm.PushTokenService
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.jwt.TokenProvider
+import kr.co.vividnext.sodalive.member.MemberKind
 import kr.co.vividnext.sodalive.member.MemberRepository
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.login.LoginRequest
@@ -70,6 +71,10 @@ class CreatorAdminMemberService(
             throw SodaException(messageKey = "creator.admin.member.inactive_account")
         }
 
+        if (member.memberKind == MemberKind.AI_CHARACTER) {
+            throw SodaException(messageKey = "common.error.bad_credentials")
+        }
+
         if (member.role != MemberRole.CREATOR && member.role != MemberRole.AGENT) {
             throw SodaException(messageKey = "common.error.bad_credentials")
         }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/member/MemberService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/member/MemberService.kt
index 9f65dae9..a6e790ff 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/member/MemberService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/member/MemberService.kt
@@ -339,6 +339,10 @@ class MemberService(
             throw SodaException(messageKey = "member.validation.inactive_account")
         }
 
+        if (member.memberKind == MemberKind.AI_CHARACTER) {
+            throw SodaException(messageKey = "common.error.bad_credentials")
+        }
+
         if (member.provider != MemberProvider.EMAIL) {
             val provider = resolveProviderLabel(member.provider)
             throw SodaException(message = formatMessage("member.validation.email_registered_with_provider", provider))
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/creator/admin/member/CreatorAdminMemberServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/creator/admin/member/CreatorAdminMemberServiceTest.kt
new file mode 100644
index 00000000..40e1240c
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/creator/admin/member/CreatorAdminMemberServiceTest.kt
@@ -0,0 +1,49 @@
+package kr.co.vividnext.sodalive.creator.admin.member
+
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberKind
+import kr.co.vividnext.sodalive.member.MemberRepository
+import kr.co.vividnext.sodalive.member.MemberRole
+import kr.co.vividnext.sodalive.member.login.LoginRequest
+import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertThrows
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.test.context.ContextConfiguration
+import org.springframework.transaction.annotation.Transactional
+import javax.persistence.EntityManager
+
+@SpringBootTest
+@Transactional
+@ContextConfiguration(initializers = [EmbeddedRedisInitializer::class])
+class CreatorAdminMemberServiceTest @Autowired constructor(
+    private val service: CreatorAdminMemberService,
+    private val memberRepository: MemberRepository,
+    private val entityManager: EntityManager
+) {
+    @Test
+    @DisplayName("AI 캐릭터용 Member는 크리에이터 관리자 로그인할 수 없다")
+    fun shouldRejectAiCharacterMemberCreatorAdminLogin() {
+        val member = memberRepository.save(
+            Member(
+                email = "ai-character-creator-admin@test.com",
+                password = "",
+                nickname = "AI 캐릭터 관리자",
+                role = MemberRole.CREATOR,
+                memberKind = MemberKind.AI_CHARACTER
+            )
+        )
+        entityManager.flush()
+        entityManager.clear()
+
+        val exception = assertThrows(SodaException::class.java) {
+            service.login(LoginRequest(email = member.email!!, password = "password"))
+        }
+
+        assertEquals("common.error.bad_credentials", exception.messageKey)
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/member/MemberServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/member/MemberServiceTest.kt
new file mode 100644
index 00000000..e121cc68
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/member/MemberServiceTest.kt
@@ -0,0 +1,45 @@
+package kr.co.vividnext.sodalive.member
+
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.member.login.LoginRequest
+import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertThrows
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.test.context.ContextConfiguration
+import org.springframework.transaction.annotation.Transactional
+import javax.persistence.EntityManager
+
+@SpringBootTest
+@Transactional
+@ContextConfiguration(initializers = [EmbeddedRedisInitializer::class])
+class MemberServiceTest @Autowired constructor(
+    private val service: MemberService,
+    private val memberRepository: MemberRepository,
+    private val entityManager: EntityManager
+) {
+    @Test
+    @DisplayName("AI 캐릭터용 Member는 일반 로그인할 수 없다")
+    fun shouldRejectAiCharacterMemberLoginBeforeAuthentication() {
+        val member = memberRepository.save(
+            Member(
+                email = "ai-character-login@test.com",
+                password = "",
+                nickname = "AI 캐릭터 로그인",
+                role = MemberRole.CREATOR,
+                memberKind = MemberKind.AI_CHARACTER
+            )
+        )
+        entityManager.flush()
+        entityManager.clear()
+
+        val exception = assertThrows(SodaException::class.java) {
+            service.login(LoginRequest(email = member.email!!, password = "password"))
+        }
+
+        assertEquals("common.error.bad_credentials", exception.messageKey)
+    }
+}