diff --git a/js/src/i18n/ja.json b/js/src/i18n/ja.json
index 05a451e2..268e3bd3 100644
--- a/js/src/i18n/ja.json
+++ b/js/src/i18n/ja.json
@@ -487,7 +487,7 @@
   "Key words": "キーワード",
   "Language": "言語",
   "Last IP adress": "最後にログインした時のIPアドレス",
-  "Last group created": "",
+  "Last group created": "直近新規作成されたグループ",
   "Last published event": "最近投稿した順",
   "Last published events": "最後に作成されたイベント",
   "Last sign-in": "最後のログイン",
@@ -534,7 +534,7 @@
   "Mobilizon": "Mobilizion",
   "Mobilizon is a federated network. You can interact with this event from a different server.": "",
   "Mobilizon is a federated software, meaning you can interact - depending on your admin's federation settings - with content from other instances, such as joining groups or events that were created elsewhere.": "",
-  "Mobilizon is a tool that helps you <b>find, create and organise events</b>.": "",
+  "Mobilizon is a tool that helps you <b>find, create and organise events</b>.": "「Mobillizon」は<b>イベントの作成、計画、探す、または管理できる</b>ツールです。",
   "Mobilizon is not a giant platform, but a <b>multitude of interconnected Mobilizon websites</b>.": "",
   "Mobilizon software": "Mobilizionソフトウェア",
   "Mobilizon uses a system of profiles to compartiment your activities. You will be able to create as many profiles as you want.": "",
@@ -962,9 +962,9 @@
   "To activate more notifications, head over to the notification settings.": "",
   "To confirm, type your event title \"{eventTitle}\"": "",
   "To confirm, type your identity username \"{preferredUsername}\"": "",
-  "To create and manage multiples identities from a same account": "",
-  "To create and manage your events": "",
-  "To create or join an group and start organizing with other people": "",
+  "To create and manage multiples identities from a same account": "一つのアカウントで複数のプロフィールを作成と管理できる",
+  "To create and manage your events": "グループとイベントの作成と管理しやすい",
+  "To create or join an group and start organizing with other people": "新規グループ作成やあるグループに加入すると他人と計画を立つ",
   "To follow groups and be informed of their latest events": "",
   "To register for an event by choosing one of your identities": "",
   "Today": "今日",
@@ -1053,7 +1053,7 @@
   "Welcome to Mobilizon, {username}!": "{username}さん 、Mobilizonへようこそ!",
   "What can I do to help?": "",
   "Wheelchair accessibility": "",
-  "When a moderator from the group creates an event and attributes it to the group, it will show up here.": "",
+  "When a moderator from the group creates an event and attributes it to the group, it will show up here.": "グループの管理人がグループで管理する新規イベントを作成してら、ここで表示されます。",
   "When the event is private, you'll need to share the link around.": "",
   "When the post is private, you'll need to share the link around.": "",
   "Whether the event is accessible with a wheelchair": "",