diff --git a/locales/en.yml b/locales/en.yml
index 7ecb9fbea..8972ae05e 100644
--- a/locales/en.yml
+++ b/locales/en.yml
@@ -76,10 +76,10 @@ common:
     turn-of: "{}'s turn"
     past-turn-of: "{}'s turn"
     won: "{} won"
-    black: "黒"
-    white: "白"
-    total: "合計"
-    this-turn: "{}ターン目"
+    black: "Black"
+    white: "White"
+    total: "Total"
+    this-turn: "Turn {}"
   widgets:
     analog-clock: "Analog clock"
     profile: "Profile"
@@ -123,40 +123,40 @@ common:
     pop-right: "Dock on the right"
 common/views/components/games/reversi/reversi.vue:
   title: "Misskey Reversi"
-  sub-title: "他のMisskeyユーザーとリバーシで対戦しよう"
-  invite: "招待"
-  rule: "遊び方"
-  rule-desc: "リバーシは、相手と交互に石をボードに置いて、相手の石を挟んで自分の色に変えてゆき、最終的に残った石が多い方が勝ちというボードゲームです。"
-  mode-invite: "招待"
-  mode-invite-desc: "指定したユーザーと対戦するモードです。"
-  invitations: "対局の招待があります！"
-  my-games: "自分の対局"
-  all-games: "みんなの対局"
-  enter-username: "ユーザー名を入力してください"
+  sub-title: "Play reversi with your friends!"
+  invite: "Invite"
+  rule: "How to play"
+  rule-desc: "Reversi is a strategy board game for two players, played on an 8×8 uncheckered board. There are sixty-four identical game pieces called disks (often spelled \"discs\"), which are light on one side and dark on the other. Players take turns placing disks on the board with their assigned color facing up. During a play, any disks of the opponent's color that are in a straight line and bounded by the disk just placed and another disk of the current player's color are turned over to the current player's color.\nThe object of the game is to have the majority of disks turned to display your color when the last playable empty square is filled.\n"
+  mode-invite: "Invite"
+  mode-invite-desc: "Invite to the game a user"
+  invitations: "You received invitation!"
+  my-games: "My games"
+  all-games: "All games"
+  enter-username: "Enter username"
   game-state:
-    ended: "終了"
-    playing: "進行中"
+    ended: "Ended"
+    playing: "In Progress"
   matching:
-    waiting-for: "{}を待っています"
-    cacnel: "キャンセル"
+    waiting-for: "Waiting for {}"
+    cacnel: "Cancel"
 common/views/components/games/reversi/reversi.room.vue:
-  settings-of-the-game: "ゲームの設定"
-  choose-map: "マップを選択"
-  random: "ランダム"
-  black-or-white: "先手/後手"
-  black-is: "{}が黒"
-  rules: "ルール"
-  is-llotheo: "石の少ない方が勝ち(ロセオ)"
-  looped-map: "ループマップ"
-  can-put-everywhere: "どこでも置けるモード"
-  settings-of-the-bot: "Botの設定"
-  this-gane-is-started-soon: "ゲームは数秒後に開始されます"
-  waiting-for-other: "相手の準備が完了するのを待っています"
-  waiting-for-me: "あなたの準備が完了するのを待っています"
-  waiting-for-both: "準備中"
-  cancel: "キャンセル"
-  ready: "準備完了"
-  cancel-ready: "準備続行"
+  settings-of-the-game: "Game settings"
+  choose-map: "Choose a map"
+  random: "Random"
+  black-or-white: "Black/White"
+  black-is: "Black is {}"
+  rules: "Rules"
+  is-llotheo: "The lesser one wins"
+  looped-map: "Looped map"
+  can-put-everywhere: "Can put everywhere"
+  settings-of-the-bot: "Bot settings"
+  this-gane-is-started-soon: "This game will start soon"
+  waiting-for-other: "Waiting for the other party's preparation"
+  waiting-for-me: "Waiting for the your preparation"
+  waiting-for-both: "Waiting for yours"
+  cancel: "Cancel"
+  ready: "Ready"
+  cancel-ready: "Cancel \"Ready\""
 common/views/components/connect-failed.vue:
   title: "Unable to connect to the server"
   description: "There is a problem with your Internet connection, or the server may be down or under maintenance. Please try again later."