diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index dd892c4c..4c1b78b1 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -20,7 +20,7 @@ android {
 
     defaultConfig {
         applicationId = "com.joeloewi.croissant"
-        versionCode = 44
+        versionCode = 45
         versionName = "1.2.1"
         targetSdk = 34
 
@@ -151,8 +151,6 @@ dependencies {
 
     implementation(libs.androidx.profileinstaller)
 
-    implementation(libs.tts)
-
     //open source license activity
     implementation(libs.gms.play.services.oss.licenses)
-}
\ No newline at end of file
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e9523993..2d7fa733 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -23,6 +23,9 @@
 
             <data android:scheme="*" />
         </intent>
+        <intent>
+            <action android:name="android.intent.action.TTS_SERVICE" />
+        </intent>
     </queries>
 
     <permission
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt b/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt
index 5c7619c9..db0e3fe0 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt
@@ -10,6 +10,7 @@ import com.google.android.play.core.appupdate.AppUpdateManagerFactory
 import com.joeloewi.croissant.R
 import com.joeloewi.croissant.util.AlarmScheduler
 import com.joeloewi.croissant.util.NotificationGenerator
+import com.joeloewi.croissant.util.TextToSpeechFactory
 import com.joeloewi.croissant.util.impl.AlarmSchedulerImpl
 import com.joeloewi.croissant.util.impl.RunnableSchedulerImpl
 import dagger.Binds
@@ -18,8 +19,6 @@ import dagger.Provides
 import dagger.hilt.InstallIn
 import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
-import nl.marc_apps.tts.TextToSpeechEngine
-import nl.marc_apps.tts.TextToSpeechFactory
 import okhttp3.OkHttpClient
 import javax.inject.Singleton
 
@@ -44,7 +43,7 @@ object UtilModule {
     @Provides
     fun provideTextToSpeechFactory(
         @ApplicationContext context: Context
-    ): TextToSpeechFactory = TextToSpeechFactory(context, TextToSpeechEngine.SystemDefault)
+    ): TextToSpeechFactory = TextToSpeechFactory(context)
 
     @Provides
     fun provideNotificationGenerator(
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/EmptyScreen.kt b/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/EmptyScreen.kt
index 7c2aab2d..a2987201 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/EmptyScreen.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/EmptyScreen.kt
@@ -1,5 +1,7 @@
 package com.joeloewi.croissant.ui.navigation.main.global.screen
 
+import android.app.AlarmManager
+import android.content.pm.PackageManager
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Scaffold
@@ -8,8 +10,13 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.core.content.ContextCompat
+import androidx.core.content.getSystemService
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.joeloewi.croissant.util.CroissantPermission
+import com.joeloewi.croissant.util.canScheduleExactAlarmsCompat
 import com.joeloewi.croissant.viewmodel.EmptyViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.catch
@@ -37,13 +44,25 @@ private fun EmptyContent(
     onShowFirstLaunchScreen: () -> Unit,
     onShowDefaultScreen: () -> Unit
 ) {
+    val context = LocalContext.current
 
     LaunchedEffect(Unit) {
         withContext(Dispatchers.IO) {
             snapshotFlow { isFirstLaunch() }.catch { }.filterNotNull()
                 .collect { showFirstLaunchScreen ->
                     withContext(Dispatchers.Main) {
-                        if (showFirstLaunchScreen) {
+                        val anyOfPermissionsIsDenied = listOf(
+                            CroissantPermission.AccessHoYoLABSession.permission,
+                            CroissantPermission.PostNotifications.permission
+                        ).any {
+                            ContextCompat.checkSelfPermission(
+                                context,
+                                it
+                            ) == PackageManager.PERMISSION_DENIED
+                        } || context.getSystemService<AlarmManager>()
+                            ?.canScheduleExactAlarmsCompat() == false
+
+                        if (showFirstLaunchScreen || anyOfPermissionsIsDenied) {
                             onShowFirstLaunchScreen()
                         } else {
                             onShowDefaultScreen()
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/FirstLaunchScreen.kt b/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/FirstLaunchScreen.kt
index 1ea84cb8..d08fe3eb 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/FirstLaunchScreen.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/global/screen/FirstLaunchScreen.kt
@@ -62,6 +62,7 @@ import coil.compose.AsyncImage
 import coil.request.ImageRequest
 import com.google.accompanist.permissions.ExperimentalPermissionsApi
 import com.google.accompanist.permissions.PermissionStatus
+import com.google.accompanist.permissions.isGranted
 import com.google.accompanist.permissions.rememberMultiplePermissionsState
 import com.joeloewi.croissant.R
 import com.joeloewi.croissant.ui.theme.DefaultDp
@@ -101,7 +102,7 @@ private fun FirstLaunchContent(
             CroissantPermission.PostNotifications.permission
         ),
         onPermissionsResult = {
-            if (scheduleExactAlarmPermissionState.status != PermissionStatus.Granted) {
+            if (!scheduleExactAlarmPermissionState.status.isGranted) {
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
                     val intent = Intent(Settings.ACTION_REQUEST_SCHEDULE_EXACT_ALARM)
 
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/settings/screen/DeveloperInfoScreen.kt b/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/settings/screen/DeveloperInfoScreen.kt
index 829ad0b9..53e386c5 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/settings/screen/DeveloperInfoScreen.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/ui/navigation/main/settings/screen/DeveloperInfoScreen.kt
@@ -2,6 +2,7 @@ package com.joeloewi.croissant.ui.navigation.main.settings.screen
 
 import android.content.Intent
 import android.net.Uri
+import android.speech.tts.TextToSpeech
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
@@ -37,6 +38,7 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
+import androidx.core.os.bundleOf
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.LocalViewModelStoreOwner
@@ -49,7 +51,6 @@ import com.joeloewi.croissant.util.navigationIconButton
 import com.joeloewi.croissant.viewmodel.DeveloperInfoViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
-import nl.marc_apps.tts.TextToSpeechInstance
 
 @Composable
 fun DeveloperInfoScreen(
@@ -67,7 +68,7 @@ fun DeveloperInfoScreen(
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 private fun DeveloperInfoContent(
-    textToSpeech: () -> LCE<TextToSpeechInstance>,
+    textToSpeech: () -> LCE<TextToSpeech>,
     onNavigateUp: () -> Unit
 ) {
     val activity = LocalActivity.current
@@ -111,7 +112,12 @@ private fun DeveloperInfoContent(
                             ) {
                                 coroutineScope.launch(Dispatchers.IO) {
                                     textToSpeech().content?.runCatching {
-                                        say("안아줘요", true)
+                                        speak(
+                                            "안아줘요",
+                                            TextToSpeech.QUEUE_FLUSH,
+                                            bundleOf(),
+                                            "hug_me"
+                                        )
                                     }
                                 }
                             },
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/util/TextToSpeechFactory.kt b/app/src/main/kotlin/com/joeloewi/croissant/util/TextToSpeechFactory.kt
new file mode 100644
index 00000000..5062ede4
--- /dev/null
+++ b/app/src/main/kotlin/com/joeloewi/croissant/util/TextToSpeechFactory.kt
@@ -0,0 +1,42 @@
+package com.joeloewi.croissant.util
+
+import android.content.Context
+import android.speech.tts.TextToSpeech
+import com.joeloewi.croissant.state.foldAsLce
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.callbackFlow
+import java.util.Locale
+import javax.inject.Inject
+
+class TextToSpeechFactory @Inject constructor(
+    @ApplicationContext private val context: Context
+) {
+    val flow = callbackFlow {
+        var textToSpeech: TextToSpeech? = null
+
+        textToSpeech = TextToSpeech(context) { status ->
+            trySend(runCatching {
+                if (status != TextToSpeech.SUCCESS) {
+                    throw IllegalStateException()
+                }
+                textToSpeech!!.apply {
+                    val currentLocale = Locale.getDefault()
+                    val targetLocale = if (availableLanguages.contains(currentLocale)) {
+                        currentLocale
+                    } else {
+                        Locale.ENGLISH
+                    }
+                    language = targetLocale
+                }
+            }.foldAsLce())
+        }
+
+        awaitClose {
+            with(textToSpeech) {
+                stop()
+                shutdown()
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/DeveloperInfoViewModel.kt b/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/DeveloperInfoViewModel.kt
index 6908a93c..3c15ef66 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/DeveloperInfoViewModel.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/DeveloperInfoViewModel.kt
@@ -3,37 +3,20 @@ package com.joeloewi.croissant.viewmodel
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.joeloewi.croissant.state.LCE
+import com.joeloewi.croissant.util.TextToSpeechFactory
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.callbackFlow
 import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.stateIn
-import nl.marc_apps.tts.TextToSpeechFactory
 import javax.inject.Inject
 
 @HiltViewModel
 class DeveloperInfoViewModel @Inject constructor(
-    private val textToSpeechFactory: TextToSpeechFactory
+    textToSpeechFactory: TextToSpeechFactory
 ) : ViewModel() {
-    val textToSpeech = callbackFlow {
-        val textToSpeech = textToSpeechFactory.runCatching {
-            createOrThrow()
-        }.fold(
-            onSuccess = {
-                LCE.Content(it)
-            },
-            onFailure = {
-                LCE.Error(it)
-            }
-        )
-
-        trySend(textToSpeech)
-
-        awaitClose { textToSpeech.content?.close() }
-    }.catch { }.flowOn(Dispatchers.IO).stateIn(
+    val textToSpeech = textToSpeechFactory.flow.catch { }.flowOn(Dispatchers.IO).stateIn(
         scope = viewModelScope,
         started = SharingStarted.WhileSubscribed(),
         initialValue = LCE.Loading