diff --git a/app/src/main/java/xyz/quaver/pupil/MainActivity.kt b/app/src/main/java/xyz/quaver/pupil/MainActivity.kt
index 63b2ff44..28079aaf 100644
--- a/app/src/main/java/xyz/quaver/pupil/MainActivity.kt
+++ b/app/src/main/java/xyz/quaver/pupil/MainActivity.kt
@@ -1,6 +1,8 @@
 package xyz.quaver.pupil
 
+import android.Manifest
 import android.content.Intent
+import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Bundle
 import android.os.Environment
@@ -15,8 +17,8 @@ import android.widget.TextView
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.cardview.widget.CardView
+import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
-import androidx.core.content.FileProvider
 import androidx.core.content.res.ResourcesCompat
 import androidx.core.view.GravityCompat
 import com.arlib.floatingsearchview.FloatingSearchView
@@ -75,6 +77,8 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        checkPermissions()
+
         val preference = PreferenceManager.getDefaultSharedPreferences(this)
 
         if (Locale.getDefault().language == "ko") {
@@ -245,6 +249,11 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
+    private fun checkPermissions() {
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
+            ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), 13489)
+    }
+
     private fun initView() {
         var prevP1 = 0
         main_appbar_layout.addOnOffsetChangedListener(
diff --git a/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt b/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt
index 7f8e1405..3ce9999e 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/GalleryDownloader.kt
@@ -5,6 +5,7 @@ import android.content.Context
 import android.content.ContextWrapper
 import android.content.Intent
 import android.os.Environment
+import android.util.Log
 import android.util.SparseArray
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
@@ -17,6 +18,8 @@ import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonConfiguration
 import kotlinx.serialization.list
 import xyz.quaver.hitomi.*
+import xyz.quaver.hiyobi.cookie
+import xyz.quaver.hiyobi.user_agent
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
 import xyz.quaver.pupil.ReaderActivity
@@ -88,8 +91,6 @@ class GalleryDownloader(
             download = _notify
             val json = Json(JsonConfiguration.Stable)
             val serializer = ReaderItem.serializer().list
-            val preference = PreferenceManager.getDefaultSharedPreferences(this@GalleryDownloader)
-            val useHiyobi = preference.getBoolean("use_hiyobi", false)
 
             //Check cache
             val cache = File(ContextCompat.getDataDir(this@GalleryDownloader), "images/${galleryBlock.id}/reader.json").let {
@@ -109,19 +110,7 @@ class GalleryDownloader(
             }
 
             //Cache doesn't exist. Load from internet
-            val reader = when {
-                useHiyobi -> {
-                    xyz.quaver.hiyobi.getReader(galleryBlock.id).let {
-                        when {
-                            it.isEmpty() -> getReader(galleryBlock.id)
-                            else -> it
-                        }
-                    }
-                }
-                else -> {
-                    getReader(galleryBlock.id)
-                }
-            }
+            val reader = getReader(galleryBlock.id)
 
             if (reader.isNotEmpty()) {
                 //Save cache
@@ -191,7 +180,7 @@ class GalleryDownloader(
                             } catch (e: Exception) {
                                 cache.delete()
 
-                                downloads.remove(galleryBlock.id)
+                                Log.e("Pupil", e.toString())
 
                                 onErrorHandler?.invoke(e)
 
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index c0b571d8..8742adff 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -19,7 +19,6 @@
     <string name="update_title">新しいアップデートがあります</string>
     <string name="warning">注意</string>
     <string name="settings_miscellaneous_title">その他</string>
-    <string name="settings_use_hiyobi_summary">ロード速度を向上させるためhiyobi.meからイメージロード</string>
     <string name="settings_use_hiyobi_title">hiyobi.meからロード</string>
     <string name="settings_clear_history">履歴を削除</string>
     <string name="settings_clear_history_alert_message">履歴を削除しますか？</string>
@@ -67,4 +66,5 @@
     <string name="settings_auto_export_summary">ダウンロード完了後自動的にエクスポート</string>
     <string name="settings_clear_downloads">ダウンロード削除</string>
     <string name="settings_clear_downloads_alert_message">ダウンロードしたギャラリーを全て削除します。\n実行しますか？</string>
+    <string name="settings_use_hiyobi_summary">点検中</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index bd1f8e0c..1277a72f 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -19,7 +19,6 @@
     <string name="main_search">검색</string>
     <string name="settings_cache_title">캐시</string>
     <string name="settings_miscellaneous_title">기타</string>
-    <string name="settings_use_hiyobi_summary">속도 향상을 위해 가능한 경우 hiyobi.me에서 이미지 로드</string>
     <string name="settings_use_hiyobi_title">hiyobi.me 사용</string>
     <string name="settings_clear_history">기록 삭제</string>
     <string name="settings_clear_history_alert_message">기록을 삭제하시겠습니까?</string>
@@ -67,4 +66,5 @@
     <string name="settings_auto_export_summary">다운로드가 끝난 후 자동 내보내기</string>
     <string name="settings_clear_downloads">다운로드 삭제</string>
     <string name="settings_clear_downloads_alert_message">다운로드 된 만화를 모두 삭제합니다.\n계속하시겠습니까?</string>
+    <string name="settings_use_hiyobi_summary">점검중</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 d8232b53..edad79da 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -88,7 +88,7 @@
     <string name="settings_clear_history_summary">%1$d histories saved</string>
     <string name="settings_miscellaneous_title">Miscellaneous</string>
     <string name="settings_use_hiyobi_title">Use hiyobi.me</string>
-    <string name="settings_use_hiyobi_summary">Load images from hiyobi.me to improve loading speed (if available)</string>
+    <string name="settings_use_hiyobi_summary">Under maintenance</string>
     <string name="settings_export_zip_title">Export zip</string>
     <string name="settings_export_zip_summary">Export to zip instead of image folder</string>
     <string name="settings_auto_export_title">Auto Export</string>
diff --git a/app/src/main/res/xml/root_preferences.xml b/app/src/main/res/xml/root_preferences.xml
index 00e29ae6..231daef9 100644
--- a/app/src/main/res/xml/root_preferences.xml
+++ b/app/src/main/res/xml/root_preferences.xml
@@ -41,11 +41,6 @@
     <PreferenceCategory
         app:title="@string/settings_miscellaneous_title">
 
-        <SwitchPreference
-            app:key="use_hiyobi"
-            app:title="@string/settings_use_hiyobi_title"
-            app:summary="@string/settings_use_hiyobi_summary"/>
-
         <SwitchPreference
             app:key="export_zip"
             app:title="@string/settings_export_zip_title"
diff --git a/libpupil/src/main/java/xyz/quaver/hiyobi/reader.kt b/libpupil/src/main/java/xyz/quaver/hiyobi/reader.kt
index 003b0c55..a20de850 100644
--- a/libpupil/src/main/java/xyz/quaver/hiyobi/reader.kt
+++ b/libpupil/src/main/java/xyz/quaver/hiyobi/reader.kt
@@ -13,6 +13,12 @@ const val hiyobi = "xn--9w3b15m8vo.asia"
 const val user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36"
 
 var cookie: String = ""
+get() {
+    if (field.isEmpty())
+        field  = renewCookie()
+
+    return field
+}
 
 fun renewCookie() : String {
     val url = "https://$hiyobi/"
@@ -32,9 +38,6 @@ fun renewCookie() : String {
 fun getReader(galleryId: Int) : Reader {
     val url = "https://$hiyobi/data/json/${galleryId}_list.json"
 
-    if (cookie.isEmpty())
-        cookie = renewCookie()
-
     try {
         val json = Json(JsonConfiguration.Stable).parseJson(
             with(URL(url).openConnection() as HttpsURLConnection) {
diff --git a/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt b/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
index e85582af..38cecc11 100644
--- a/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
+++ b/libpupil/src/test/java/xyz/quaver/hitomi/UnitTest.kt
@@ -14,8 +14,7 @@ class UnitTest {
     fun test_nozomi() {
         val nozomi = fetchNozomi(start = 0, count = 5)
 
-        for (n in nozomi)
-            println(n)
+        nozomi.first
     }
 
     @Test
@@ -62,6 +61,8 @@ class UnitTest {
 
     @Test
     fun test_hiyobi() {
-        print(xyz.quaver.hiyobi.getReader(1415416).size)
+        xyz.quaver.hiyobi.getReader(1415416).forEach {
+            println(it.url)
+        }
     }
 }
\ No newline at end of file