diff --git a/src/main/kotlin/com/toyProject7/karrot/manner/service/MannerService.kt b/src/main/kotlin/com/toyProject7/karrot/manner/service/MannerService.kt
index 72da4b1..173847d 100644
--- a/src/main/kotlin/com/toyProject7/karrot/manner/service/MannerService.kt
+++ b/src/main/kotlin/com/toyProject7/karrot/manner/service/MannerService.kt
@@ -39,5 +39,8 @@ class MannerService(
             profileEntity.manners += newMannerEntity
         }
         userEntity.temperature++
+        if (userEntity.temperature > 100) {
+            userEntity.temperature = 100.0
+        }
     }
 }