diff --git a/Plan/common/src/main/resources/assets/plan/locale/locale_JA.yml b/Plan/common/src/main/resources/assets/plan/locale/locale_JA.yml
index a36675bd0..0b7d2724f 100644
--- a/Plan/common/src/main/resources/assets/plan/locale/locale_JA.yml
+++ b/Plan/common/src/main/resources/assets/plan/locale/locale_JA.yml
@@ -325,11 +325,11 @@ html:
             average: "平均の初回セッション時間"
             median: "初回セッション時間の中央値"
         geoProjection:
-            dropdown: "Select projection"
-            equalEarth: "Equal Earth"
-            mercator: "Mercator"
-            miller: "Miller"
-            ortographic: "Ortographic"
+            dropdown: "投影法を選ぶ"
+            equalEarth: "イコールアース図法"
+            mercator: "メルカトル図法"
+            miller: "ミラー図法"
+            ortographic: "正射図法"
         geolocations: "地域"
         help:
             activityIndexBasis: "Activity index is based on non-AFK playtime in the past 3 weeks (21 days). Each week is considered separately."
@@ -388,7 +388,7 @@ html:
         killed: "殺した人"
         last24hours: "24時間"
         last30days: "1ヶ月"
-        last7days: "一週間"
+        last7days: "1週間"
         lastConnected: "直近の接続"
         lastPeak: "直近のピークタイム"
         lastSeen: "直近のオンライン"
@@ -441,7 +441,7 @@ html:
         playerList: "プレイヤー一覧"
         playerOverview: "プレイヤーの概要"
         playerPage: "プレイヤーページ"
-        playerRetention: "Player Retention"
+        playerRetention: "プレイヤー推移"
         playerbase: "プレイヤーベース"
         playerbaseDevelopment: "登録されているプレイヤーの推移"
         playerbaseOverview: "Playerbase Overview"
@@ -470,19 +470,19 @@ html:
         regularPlayers: "よくオンラインのプレイヤー"
         relativeJoinActivity: "オンラインと活動との関係性"
         retention:
-            groupByNone: "No grouping"
+            groupByNone: "グルーピング無し"
             groupByTime: "Group registered by"
-            inAnytime: "any time"
-            inLast180d: "in the last 6 months"
-            inLast30d: "in the last 30 days"
-            inLast365d: "in the last 12 months"
-            inLast730d: "in the last 24 months"
-            inLast7d: "in the last 7 days"
-            inLast90d: "in the last 3 months"
-            playersRegisteredInTime: "Players who registered"
+            inAnytime: "全期間"
+            inLast180d: "直近6ヶ月"
+            inLast30d: "直近30日"
+            inLast365d: "直近12ヶ月"
+            inLast730d: "直近24ヶ月"
+            inLast7d: "直近7日"
+            inLast90d: "直近3ヶ月"
+            playersRegisteredInTime: "登録日"
             retainedPlayersPercentage: "Retained Players %"
-            timeSinceRegistered: "Time since register date"
-            timeStep: "Time step"
+            timeSinceRegistered: "登録日からの経過時間"
+            timeStep: "時間幅"
         secondDeadliestWeapon: "2番目にPvPで使用されている武器"
         seenNicknames: "ニックネーム一覧"
         server: "サーバー"
@@ -538,7 +538,7 @@ html:
             percentage: "パーセンテージ"
             playerCount: "プレイヤー数"
         veryActive: "とてもログインしている"
-        weekComparison: "直近1周間での比較"
+        weekComparison: "直近1週間での比較"
         weekdays: "'月曜日', '火曜日', '水曜日', '木曜日', '金曜日', '土曜日', '日曜日'"
         world: "ワールドのロード数"
         worldPlaytime: "ワールドごとのプレイ時間"
@@ -561,7 +561,7 @@ html:
         info:
             bugs: "バグ報告"
             contributors:
-                bugreporters: "& Bug reporters!"
+                bugreporters: "そして、バグ報告者のみなさん!"
                 code: ":プログラミング貢献者 "
                 donate: "このプラグイン開発に募金して頂いた人々へ特別な感謝を"
                 text: '加えて、以下の<span class="col-plan">素晴らしい人々</span>が開発に貢献しています'
@@ -584,12 +584,12 @@ html:
             activity:
                 text: "are in Activity Groups"
             banStatus:
-                name: "Ban status"
-            banned: "Banned"
+                name: "BAN状況"
+            banned: "BAN済"
             country:
                 text: "have joined from country"
             generic:
-                allPlayers: "All players"
+                allPlayers: "全てのプレイヤー"
                 and: "and "
                 start: "of Players who "
             hasPlayedOnServers:
@@ -600,11 +600,11 @@ html:
                 text: "have Plugin boolean value"
             joinAddress:
                 text: "joined with address"
-            nonOperators: "Non operators"
-            notBanned: "Not banned"
+            nonOperators: "オペレーターでない"
+            notBanned: "BANされていない"
             operatorStatus:
-                name: "Operator status"
-            operators: "Operators"
+                name: "オペレーターステータス"
+            operators: "オペレーター"
             playedBetween:
                 text: "Played between"
             pluginGroup:
@@ -614,51 +614,51 @@ html:
                 text: "Registered between"
             skipped: "Skipped"
             title:
-                activityGroup: "Current activity group"
+                activityGroup: "活動時間のグループ"
             view: "  View:"
         filters:
-            add: "Add a filter.."
-            loading: "Loading filters.."
+            add: "フィルタを追加する.."
+            loading: "フィルタ読み込み中.."
         generic:
             are: "`are`"
         label:
             from: ">from</label>"
-            makeAnother: "Make another query"
+            makeAnother: "別のクエリを作る"
             servers:
-                all: "using data of all servers"
+                all: "以下に含まれる全てのサーバー"
                 many: "using data of {number} servers"
                 single: "using data of 1 server"
                 two: "using data of 2 servers"
             to: ">to</label>"
-            view: "Show a view"
-        performQuery: "Perform Query!"
+            view: "ビューを表示"
+        performQuery: "クエリを実行!"
         results:
             match: "matched ${resultCount} players"
             none: "Query produced 0 results"
-            title: "Query Results"
+            title: "クエリ結果"
         title:
             activity: "Activity of matched players"
             activityOnDate: 'Activity on <span id="activity-date"></span>'
             sessionsWithinView: "Sessions within view"
-            text: "Query<"
+            text: "クエリ<"
     register:
-        completion: "Complete Registration"
-        completion1: "You can now finish registering the user."
-        completion2: "Code expires in 15 minutes"
-        completion3: "Use the following command in game to finish registration:"
-        completion4: "Or using console:"
-        createNewUser: "Create a new user"
+        completion: "登録を完了するには"
+        completion1: "ユーザー登録ができるようになりました"
+        completion2: "このコードは15分で使えなくなります"
+        completion3: "ゲームの中で以下のコマンドを実行し、登録を完了させてください:"
+        completion4: "もしくは、サーバーコンソールを使う場合:"
+        createNewUser: "新規ユーザーを作成"
         error:
             checkFailed: "Checking registration status failed: "
             failed: "Registration failed: "
-            noPassword: "You need to specify a Password"
-            noUsername: "You need to specify a Username"
+            noPassword: "パスワードを指定する必要があります"
+            noUsername: "ユーザー名を指定する必要があります"
             usernameLength: "Username can be up to 50 characters, yours is "
-        login: "Already have an account? Login!"
-        passwordTip: "Password should be more than 8 characters, but there are no limitations."
-        register: "Register"
-        success: "Registered a new user successfully! You can now login."
-        usernameTip: "Username can be up to 50 characters."
+        login: "もうアカウントがありますか?ログインはこちら!"
+        passwordTip: "パスワードは8文字以上である必要がありますが、その他の制限はありません。"
+        register: "登録"
+        success: "新規ユーザー登録が完了しました!ログインできるようになりました。"
+        usernameTip: "ユーザー名は50文字以内で指定します"
     text:
         clickToExpand: "クリックして展開"
         comparing15days: "直近15日との比較"