diff --git a/localization/japanese.txt b/localization/japanese.txt
new file mode 100644
index 0000000..084ab9e
--- /dev/null
+++ b/localization/japanese.txt
@@ -0,0 +1,98 @@
+{
+	"NepgearsyMM_Title" : "Nepgearsy Menu 設定",
+	"NepgearsyMM_Desc" : "メニュー設定を変更",
+
+	"NepgearsyMM_LanguageSelection_Title" : "言語",
+	"NepgearsyMM_LanguageSelection_Desc" : "",
+	"NepgearsyMM_LanguageSelection_English" : "English",
+	"NepgearsyMM_LanguageSelection_German" : "Deutsch",
+	"NepgearsyMM_LanguageSelection_Russian" : "Русский",
+	"NepgearsyMM_LanguageSelection_Turkish" : "Turkce",
+	"NepgearsyMM_LanguageSelection_Spanish" : "Español",
+	"NepgearsyMM_LanguageSelection_French" : "French",
+	"NepgearsyMM_LanguageSelection_SChinese" : "Simplified Chinese",
+	"NepgearsyMM_LanguageSelection_Portuguese" : "Portuguese",
+	"NepgearsyMM_LanguageSelection_Thai" : "Thai",
+  "NepgearsyMM_LanguageSelection_Japanese" : "Japanese",	
+
+	"nepmenu_exp_needed_text" : "$nextlevel まで $exp 必要",
+	"nepmenu_exp_max_level_reached" : "最高レベル到達",
+
+	"nepmenu_infamy_title_0" : "Rookie Heister",
+	"nepmenu_infamy_title_1" : "Becoming Infamous",
+	"nepmenu_infamy_title_2" : "Becoming Disgraceful",
+	"nepmenu_infamy_title_3" : "Becoming Wicked",
+	"nepmenu_infamy_title_4" : "Becoming Notorious",
+	"nepmenu_infamy_title_5" : "Becoming Vicious",
+	"nepmenu_infamy_title_6" : "Becoming Villainous",
+	"nepmenu_infamy_title_7" : "Becoming Abominable",
+	"nepmenu_infamy_title_8" : "Becoming Fiendish",
+	"nepmenu_infamy_title_9" : "Becoming Heinous",
+	"nepmenu_infamy_title_10" : "Becoming Mean",
+	"nepmenu_infamy_title_11" : "Becoming Dangerous",
+	"nepmenu_infamy_title_12" : "Becoming Fearless",
+	"nepmenu_infamy_title_13" : "Becoming Nefarious",
+	"nepmenu_infamy_title_14" : "Becoming Disreputable",
+	"nepmenu_infamy_title_15" : "Becoming Fearful",
+	"nepmenu_infamy_title_16" : "Becoming Opprobrious",
+	"nepmenu_infamy_title_17" : "Becoming Shady",
+	"nepmenu_infamy_title_18" : "Becoming Savage",
+	"nepmenu_infamy_title_19" : "Becoming Abhorrent",
+	"nepmenu_infamy_title_20" : "Becoming Sly",
+	"nepmenu_infamy_title_21" : "Becoming Crafty",
+	"nepmenu_infamy_title_22" : "Becoming Shameless",
+	"nepmenu_infamy_title_23" : "Becoming Diabolical",
+	"nepmenu_infamy_title_24" : "Becoming Ferocious",
+	"nepmenu_infamy_title_25" : "Becoming Monstrous",
+	"nepmenu_infamy_title_hax" : "Becoming Legendary Heister",
+
+	"nepmenu_spendable_cash_text" : "現金",
+	"nepmenu_offshore_cash_text" : "海外口座",
+	"nepmenu_skill_points_used_text" : "ポイント",
+
+	"nepmenu_friendlist_status_ingame" : "メインメニュー、 $state",
+	"nepmenu_friendlist_status_ltp" : "プレイ / トレード中",
+	"nepmenu_friendlist_status_ingame_joinable" : "ゲーム中、参加可能",
+	"nepmenu_friendlist_status_ingame_not_joinable" : "ゲーム中、参加不可能",
+
+	"nepmenu_friendlist_button_join_game" : "ゲームに参加",
+	"nepmenu_friendlist_button_invite" : "招待",
+	"nepmenu_friendlist_button_send_message" : "メッセージを送信",
+	"nepmenu_friendlist_button_view_loadout" : "プロフィールを表示",
+
+	"NepgearsyMM_SceneOptions_Title" : "メニューシーン設定",
+	"NepgearsyMM_SceneOptions_Desc" : "キャラクターの位置や回転、ライト等のシーンに関連する設定",
+	"NepgearsyMM_Scene_Character_Position_X_Title" : "位置 X",
+	"NepgearsyMM_Scene_Character_Position_X_Desc" : "キャラクターのX軸座標",
+	"NepgearsyMM_Scene_Character_Position_Y_Title" : "位置 Y",
+	"NepgearsyMM_Scene_Character_Position_Y_Desc" : "キャラクターのY軸座標",
+	"NepgearsyMM_Scene_Character_Position_Z_Title" : "位置 Z",
+	"NepgearsyMM_Scene_Character_Position_Z_Desc" : "キャラクターのZ軸座標",
+	"NepgearsyMM_Scene_Character_Rotation_Title" : "回転",
+	"NepgearsyMM_Scene_Character_Rotation_Desc" : "キャラクターの回転",
+	"NepgearsyMM_Scene_Light_Selection_Title" : "メニューのライト",
+	"NepgearsyMM_Scene_Light_Selection_Desc" : "メインメニューのライトを変更",
+	"NepgearsyMM_Scene_Light_Selection_NMML" : "NMM ライト",
+	"NepgearsyMM_Scene_Light_Selection_Default" : "デフォルトのライト",
+	"NepgearsyMM_Scene_Light_Selection_Random" : "ランダムなライト",
+	"NepgearsyMM_Scene_Light_Selection_None" : "通常のライト",
+	"NepgearsyMM_Scene_DisableLightsChanges_Title" : "ライトの変更を無効化",
+	"NepgearsyMM_Scene_DisableLightsChanges_Desc" : "ライトに関する変更を完全に無効化する",
+	"NepgearsyMM_Scene_HideAds_Title" : "広告を非表示",
+	"NepgearsyMM_Scene_HideAds_Desc" : "メインメニュー右下の広告パネルを非表示にする",
+
+	"NepgearsyMM_FriendListOptions_Title" : "フレンドリスト設定",
+	"NepgearsyMM_FriendListOptions_Desc" : "フレンドリストに関する設定",
+	"NepgearsyMM_FriendList_EnableRepLevel_Title" : "Infamy表示を有効化",
+	"NepgearsyMM_FriendList_EnableRepLevel_Desc" : "あなたとフレンドの両方がこのModを導入している場合に限り、Infamyが表示されるようになります。",
+
+	"NepgearsyMM_PlayerProfile_Header" : "プロフィール",
+	"NepgearsyMM_Description_Header" : "説明",
+	"NepgearsyMM_Loadout_Header" : "装備",
+	"NepgearsyMM_Skills_Header" : "スキル",
+	"NepgearsyMM_Button_Steam_Profile" : "Steam プロフィール",
+	"NepgearsyMM_Button_Steam_Achievements" : "実績",
+	"NepgearsyMM_Description_Setup" : "カスタム説明文を設定する事が出来ます。このModを導入している他のユーザーと同期されます！\n\nPAYDAY 2/mods/saves/NepgearsyMM_PersonalDescription.txtを開き、\n好きな説明文を入力してください。",
+	"NepgearsyMM_Loadout_Error" : "$name はゲーム中でないか、Nepgeary Main Menuを導入していません。",
+	"NepgearsyMM_Description_Error" : "$name はゲーム中でないか、Nepgeary Main Menuを導入していないか、\nまたは説明文を入力していません。"
+}