diff --git a/app/src/main/java/com/doyoonkim/knutice/fcm/PushNotificationHandler.kt b/app/src/main/java/com/doyoonkim/knutice/fcm/PushNotificationHandler.kt
index 372094e..6d52ba0 100644
--- a/app/src/main/java/com/doyoonkim/knutice/fcm/PushNotificationHandler.kt
+++ b/app/src/main/java/com/doyoonkim/knutice/fcm/PushNotificationHandler.kt
@@ -5,6 +5,8 @@ import android.app.NotificationChannel
 import android.app.NotificationManager
 import android.content.Context
 import android.content.pm.PackageManager
+import android.graphics.Bitmap
+import android.graphics.drawable.Icon
 import android.os.Build
 import android.util.Log
 import androidx.core.app.ActivityCompat
@@ -54,8 +56,8 @@ class PushNotificationHandler @Inject constructor() : FirebaseMessagingService()
         val notificationBuilder = NotificationCompat.Builder(
             applicationContext, getString(R.string.inapp_notification_channel_id)
         )
-            .setSmallIcon(R.mipmap.ic_launcher)
-            .setContentTitle("New Notice!")
+            .setLargeIcon(Icon.createWithResource(applicationContext, R.mipmap.ic_launcher))
+            .setContentTitle(getString(R.string.new_notice))
             .setContentText(this@toPushNotification.notification?.body ?: "No message body")
             .setPriority(NotificationCompat.PRIORITY_DEFAULT)
             .setAutoCancel(true)
diff --git a/app/src/main/java/com/doyoonkim/knutice/navigation/MainNavigator.kt b/app/src/main/java/com/doyoonkim/knutice/navigation/MainNavigator.kt
index e65da38..a805fba 100644
--- a/app/src/main/java/com/doyoonkim/knutice/navigation/MainNavigator.kt
+++ b/app/src/main/java/com/doyoonkim/knutice/navigation/MainNavigator.kt
@@ -38,28 +38,36 @@ fun MainNavigator(
             viewModel.updateState(
                 updatedCurrentLocation = Destination.MORE_GENERAL
             )
-            MoreCategorizedNotification(category = NoticeCategory.GENERAL_NEWS)
+            MoreCategorizedNotification(category = NoticeCategory.GENERAL_NEWS) {
+                navController.popBackStack()
+            }
         }
 
         composable(Destination.MORE_ACADEMIC.name) {
             viewModel.updateState(
                 updatedCurrentLocation = Destination.MORE_ACADEMIC
             )
-            MoreCategorizedNotification(category = NoticeCategory.ACADEMIC_NEWS)
+            MoreCategorizedNotification(category = NoticeCategory.ACADEMIC_NEWS) {
+                navController.popBackStack()
+            }
         }
 
         composable(Destination.MORE_SCHOLARSHIP.name) {
             viewModel.updateState(
                 updatedCurrentLocation = Destination.MORE_SCHOLARSHIP
             )
-            MoreCategorizedNotification(category = NoticeCategory.SCHOLARSHIP_NEWS)
+            MoreCategorizedNotification(category = NoticeCategory.SCHOLARSHIP_NEWS) {
+                navController.popBackStack()
+            }
         }
 
         composable(Destination.MORE_EVENT.name) {
             viewModel.updateState(
                 updatedCurrentLocation = Destination.MORE_EVENT
             )
-            MoreCategorizedNotification(category = NoticeCategory.EVENT_NEWS)
+            MoreCategorizedNotification(category = NoticeCategory.EVENT_NEWS) {
+                navController.popBackStack()
+            }
         }
 
         composable(Destination.SETTINGS.name) {
diff --git a/app/src/main/java/com/doyoonkim/knutice/presentation/CategorizedNoficiation.kt b/app/src/main/java/com/doyoonkim/knutice/presentation/CategorizedNoficiation.kt
index 0d83ba6..511b832 100644
--- a/app/src/main/java/com/doyoonkim/knutice/presentation/CategorizedNoficiation.kt
+++ b/app/src/main/java/com/doyoonkim/knutice/presentation/CategorizedNoficiation.kt
@@ -1,6 +1,7 @@
 package com.doyoonkim.knutice.presentation
 
 import android.content.res.Configuration
+import androidx.activity.compose.BackHandler
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
@@ -14,6 +15,7 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
@@ -46,6 +48,12 @@ fun CategorizedNotification(
 ) {
     val uiState by viewModel.uiState.collectAsState()
 
+    // Back button/gesture actions
+    BackHandler {
+        if (uiState.isDetailedViewOpened) viewModel.updateState(updatedIsDetailedViewOpened = false)
+        else navController.popBackStack()
+    }
+
     Column(
         modifier = modifier.verticalScroll(
             rememberScrollState(0)
diff --git a/app/src/main/java/com/doyoonkim/knutice/presentation/DetailedNoticeContent.kt b/app/src/main/java/com/doyoonkim/knutice/presentation/DetailedNoticeContent.kt
index 5a76a8f..a1de5c1 100644
--- a/app/src/main/java/com/doyoonkim/knutice/presentation/DetailedNoticeContent.kt
+++ b/app/src/main/java/com/doyoonkim/knutice/presentation/DetailedNoticeContent.kt
@@ -10,7 +10,9 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.foundation.layout.wrapContentSize
+import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonColors
 import androidx.compose.material3.IconButton
@@ -89,13 +91,19 @@ fun DetailedNoticeContent(
                 fontWeight = FontWeight.Normal
             )
 
-            Text(
+            Surface(
                 modifier = Modifier.fillMaxWidth()
-                    .weight(8f),
-                text = requested.fullContent,
-                fontSize = 18.sp,
-                fontWeight = FontWeight.Medium,
-            )
+                    .weight(8f)
+                    .verticalScroll(rememberScrollState()),
+                color = MaterialTheme.colorScheme.containerBackground
+            ) {
+                Text(
+                    modifier = Modifier.fillMaxWidth(),
+                    text = requested.fullContent,
+                    fontSize = 18.sp,
+                    fontWeight = FontWeight.Medium,
+                )
+            }
 
             Button(
                 onClick = {
diff --git a/app/src/main/java/com/doyoonkim/knutice/presentation/MoreCategorizedNoticiation.kt b/app/src/main/java/com/doyoonkim/knutice/presentation/MoreCategorizedNoticiation.kt
index 4e87fc0..f1de57d 100644
--- a/app/src/main/java/com/doyoonkim/knutice/presentation/MoreCategorizedNoticiation.kt
+++ b/app/src/main/java/com/doyoonkim/knutice/presentation/MoreCategorizedNoticiation.kt
@@ -1,6 +1,7 @@
 package com.doyoonkim.knutice.presentation
 
 import android.util.Log
+import androidx.activity.compose.BackHandler
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
@@ -38,7 +39,8 @@ import com.doyoonkim.knutice.viewModel.MoreCategorizedNotificationViewModel
 fun MoreCategorizedNotification(
     modifier: Modifier = Modifier,
     viewModel: MoreCategorizedNotificationViewModel = hiltViewModel(),
-    category: NoticeCategory
+    category: NoticeCategory,
+    backButtonHandler: () -> Unit = { }
 ) {
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
 
@@ -49,6 +51,11 @@ fun MoreCategorizedNotification(
         }
     )
 
+    BackHandler {
+        if (uiState.isDetailedContentVisible) viewModel.updatedDetailedContentRequest(false)
+        else backButtonHandler()
+    }
+
     Box(
         modifier = modifier.fillMaxWidth()
             .pullRefresh(pullRefreshState)
diff --git a/app/src/main/res/values-ko-rKR/strings.xml b/app/src/main/res/values-ko-rKR/strings.xml
index c4999d7..b10222c 100644
--- a/app/src/main/res/values-ko-rKR/strings.xml
+++ b/app/src/main/res/values-ko-rKR/strings.xml
@@ -12,7 +12,9 @@
     <string name="about_title">더보기</string>
     <string name="about_version">버전정보</string>
     <string name="about_oss">오픈소스 라이센스</string>
-    <string name="version_code">1.0.0 알파 (내부테스트용)</string>
+    <string name="version_code">1.0.1 알파 (내부테스트용)</string>
     <string name="pref_notification_title">알림</string>
     <string name="title_preference">설정</string>
+    <string name="new_notice">새로운 알림이 도착했어요!</string>
+    <string name="inapp_notificaiton_channel_name">신규 공지 알림</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 79caa34..52711f4 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -11,12 +11,13 @@
     <string name="about_title">About</string>
     <string name="about_version">Version</string>
     <string name="about_oss">Open Source License</string>
-    <string name="version_code">1.0.0 Alpha</string>
+    <string name="version_code">1.0.1 Alpha</string>
     <string name="pref_notification_title">Notification</string>
     <string name="title_preference">Preference</string>
+    <string name="new_notice">New Notice has been delivered!</string>
     <string name="default_notification_channel_id" translatable="false">knutice_default_fcm_channel</string>
     <string name="default_notification_channel_description" translatable="false">knutice default notification channel for FCM</string>
     <string name="inapp_notification_channel_id" translatable="false">knutice_inapp_notification_channel</string>
     <string name="inapp_notification_channel_description" translatable="false">knutice inapp notification channel</string>
-    <string name="inapp_notificaiton_channel_name" translatable="false">knutice inapp notification Channel</string>
+    <string name="inapp_notificaiton_channel_name">KNUTICE In-app Notice</string>
 </resources>
\ No newline at end of file