diff --git a/core/common/src/main/java/com/hilingual/core/common/extension/StringExt.kt b/core/common/src/main/java/com/hilingual/core/common/extension/StringExt.kt
new file mode 100644
index 000000000..91df06660
--- /dev/null
+++ b/core/common/src/main/java/com/hilingual/core/common/extension/StringExt.kt
@@ -0,0 +1,5 @@
+package com.hilingual.core.common.extension
+
+private val EMOJI_REGEX = Regex("[\\p{So}\\p{Cn}]+")
+
+fun String.removeEmoji(): String = this.replace(EMOJI_REGEX, "")
diff --git a/core/common/src/main/java/com/hilingual/core/common/util/EmojiFilter.kt b/core/common/src/main/java/com/hilingual/core/common/util/EmojiFilter.kt
deleted file mode 100644
index 77d7c33d6..000000000
--- a/core/common/src/main/java/com/hilingual/core/common/util/EmojiFilter.kt
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright 2025 The Hilingual Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.hilingual.core.common.util
-
-object EmojiFilter {
-    private val EMOJI_REGEX = Regex("[\\p{So}\\p{Cn}]+")
-
-    fun String.removeEmoji(): String {
-        return this.replace(EMOJI_REGEX, "")
-    }
-}
diff --git a/core/designsystem/src/main/java/com/hilingual/core/designsystem/component/textfield/HilingualLongTextField.kt b/core/designsystem/src/main/java/com/hilingual/core/designsystem/component/textfield/HilingualLongTextField.kt
index 9a0d66a30..1e7f15d3e 100644
--- a/core/designsystem/src/main/java/com/hilingual/core/designsystem/component/textfield/HilingualLongTextField.kt
+++ b/core/designsystem/src/main/java/com/hilingual/core/designsystem/component/textfield/HilingualLongTextField.kt
@@ -28,7 +28,7 @@ import androidx.compose.ui.platform.LocalSoftwareKeyboardController
 import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
-import com.hilingual.core.common.util.EmojiFilter.removeEmoji
+import com.hilingual.core.common.extension.removeEmoji
 import com.hilingual.core.designsystem.theme.HilingualTheme
 
 @Composable
diff --git a/presentation/diarywrite/src/main/java/com/hilingual/presentation/diarywrite/DiaryWriteViewModel.kt b/presentation/diarywrite/src/main/java/com/hilingual/presentation/diarywrite/DiaryWriteViewModel.kt
index 39f70da97..274dfb05f 100644
--- a/presentation/diarywrite/src/main/java/com/hilingual/presentation/diarywrite/DiaryWriteViewModel.kt
+++ b/presentation/diarywrite/src/main/java/com/hilingual/presentation/diarywrite/DiaryWriteViewModel.kt
@@ -98,7 +98,7 @@ internal class DiaryWriteViewModel @Inject constructor(
                     _uiState.update { it.copy(topicKo = topic.topicKor, topicEn = topic.topicEn) }
                 }
                 .onLogFailure {
-                    _sideEffect.emit(DiaryWriteSideEffect.ShowErrorDialog)
+                    _uiState.update { it.copy(topicKo = "", topicEn = "") }
                 }
         }
     }