diff --git a/po/wesnoth-dw/ja.po b/po/wesnoth-dw/ja.po
index 272e353d1fd4..d4da6fbbb5df 100644
--- a/po/wesnoth-dw/ja.po
+++ b/po/wesnoth-dw/ja.po
@@ -1,26 +1,14 @@
-# #-#-#-#-#  wesnoth-dw.cpp.pot (PACKAGE VERSION)  #-#-#-#-#
-# SOME DESCRIPTIVE TITLE.
-# Copyright (C) YEAR Wesnoth development team
-# This file is distributed under the same license as the PACKAGE package.
-#
 # Translators:
-# Automatically generated, 2010
-# clearpotion <clearpotion+fantasy@gmail.com>, 2010
-# mishan <mishanhideaki88@gmail.com>, 2011
-# RatArmy <broadbarredfirefish@gmail.com>, 2015-2016
-# suto3, 2017
-# tamanegi, 2017
-# yma <yma9yma@gmail.com>, 2011
-# 家庭的の人 <kateitekino_hito@yahoo.co.jp>, 2017
+# RatArmy <broadbarredfirefish@gmail.com>, 2018
 msgid ""
 msgstr ""
-"Project-Id-Version: Wesnoth-Dev Japanese\n"
+"Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: http://bugs.wesnoth.org/\n"
 "POT-Creation-Date: 2018-02-12 17:01 UTC\n"
-"PO-Revision-Date: 2017-09-22 20:48+0000\n"
-"Last-Translator: tamanegi\n"
-"Language-Team: Japanese (http://www.transifex.com/wesnoth-jp/wesnoth-dev-"
-"japanese/language/ja/)\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: RatArmy <broadbarredfirefish@gmail.com>, 2018\n"
+"Language-Team: Japanese (https://www.transifex.com/wesnoth-jp/teams/60513/"
+"ja/)\n"
 "Language: ja\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -1747,8 +1735,10 @@ msgstr "Vlagnor"
 
 #. [message]: speaker=Vlagnor
 #: data/campaigns/Dead_Water/scenarios/07_Bilheld.cfg:124
+#, fuzzy
+#| msgid "What are you merfolk doing here?"
 msgid "What are you mermen doing here?"
-msgstr "お前たちマーフォークはここで何をしているのだ？"
+msgstr "マーフォークはここで何をしているのだ？"
 
 #. [message]: speaker=Kai Krellis
 #: data/campaigns/Dead_Water/scenarios/07_Bilheld.cfg:128
@@ -1772,6 +1762,10 @@ msgstr "魔女だって？"
 
 #. [message]: speaker=Vlagnor
 #: data/campaigns/Dead_Water/scenarios/07_Bilheld.cfg:144
+#, fuzzy
+#| msgid ""
+#| "She kill drakes. If you are her friend, we will kill you. We do not want "
+#| "MORE merfolk blasting and stabbing."
 msgid ""
 "She kill drakes. If you are her friend, we will kill you. We do not want "
 "MORE mermen blasting and stabbing."
@@ -2531,11 +2525,16 @@ msgstr "今から俺も共に戦うぞ！ あの怪物はとにかく残酷だ
 
 #. [message]: speaker=narrator
 #: data/campaigns/Dead_Water/scenarios/10_The_Flaming_Sword.cfg:570
+#, fuzzy
+#| msgid ""
+#| "The merfolk clapped their hands over their ears as a terrible wail echoed "
+#| "off the castle walls."
 msgid ""
 "The mermen clapped their hands over their ears as a terrible wail echoed off "
 "the castle walls."
 msgstr ""
-"恐ろしい泣き叫ぶ声が城壁に響き渡ったので、マーマンたちは耳を手で塞ぎました。"
+"恐ろしい泣き叫ぶ声が城壁に響き渡ったので、マーフォークたちは耳を手で塞ぎまし"
+"た。"
 
 #. [message]: speaker=Kai Krellis
 #. [message]: speaker=second_unit
@@ -2753,6 +2752,14 @@ msgstr ""
 
 #. [part]
 #: data/campaigns/Dead_Water/scenarios/12_Revenge.cfg:17
+#, fuzzy
+#| msgid ""
+#| "The tribe that had fled Jotha unable to fight returned as an army "
+#| "stiffened by veteran fighters and led by a warrior king. Though they were "
+#| "tired from their journey, weariness fell from them as they neared home. "
+#| "The merfolk arrived during the night, and found the mouth of their bay "
+#| "guarded, so they headed south along the coast to some outlying villages "
+#| "to gather news of the invaders."
 msgid ""
 "The tribe that had fled Jotha unable to fight returned as an army stiffened "
 "by veteran fighters and led by a warrior king. Though they were tired from "
@@ -2763,9 +2770,9 @@ msgid ""
 msgstr ""
 "戦えずに Jotha を逃げた部族は、戦い慣れた戦士で固められ、戦士である王に率いら"
 "れた軍隊として戻ってきました。彼らは旅で疲れていましたが、故郷に近づくと疲労"
-"は抜け落ちていきました。マーマンたちは夜間に到着し、入り江の口が固められてい"
-"るのを発見しました。そのため彼らは、侵略者たちのニュースを集めるために、岸に"
-"沿って南の離れた村に向かいました。"
+"は抜け落ちていきました。マーフォークたちは夜間に到着し、入り江の口が固められ"
+"ているのを発見しました。そのため彼らは、侵略者たちのニュースを集めるために、"
+"岸に沿って南の離れた村に向かいました。"
 
 #. [message]: speaker=Nebthun
 #: data/campaigns/Dead_Water/scenarios/12_Revenge.cfg:439
@@ -2821,8 +2828,10 @@ msgstr ""
 
 #. [message]: speaker=narrator
 #: data/campaigns/Dead_Water/scenarios/12_Revenge.cfg:491
+#, fuzzy
+#| msgid "At dawn, the merfolk got a good look at their opponents."
 msgid "At dawn, the mermen got a good look at their opponents."
-msgstr "夜明けにマーマンたちは敵と会いまみえました。"
+msgstr "夜明けにマーフォークたちは敵と会いまみえました。"
 
 #. [message]: speaker=Tyegea
 #: data/campaigns/Dead_Water/scenarios/12_Revenge.cfg:497
@@ -2959,6 +2968,15 @@ msgstr "エピローグ"
 
 #. [message]: speaker=narrator
 #: data/campaigns/Dead_Water/scenarios/13_Epilogue.cfg:33
+#, fuzzy
+#| msgid ""
+#| "After destroying Mal-Ravanal’s henchmen, Kai Krellis awaited another "
+#| "attack. But it never came. Krellis sent some messengers south to discover "
+#| "what they could. The news that came back was better than good. Mal-"
+#| "Ravanal was dead! Soldiers of Wesnoth had defeated him at about the same "
+#| "time the merfolk had defeated the undead at Jotha. With the evil wizard "
+#| "gone, the merfolk relaxed and began rebuilding in earnest, and soon Jotha "
+#| "was restored."
 msgid ""
 "After destroying Mal-Ravanal’s henchmen, Kai Krellis awaited another attack. "
 "But it never came. Krellis sent some messengers south to discover what they "
@@ -2972,8 +2990,8 @@ msgstr ""
 "べさせました。偵察隊が持って帰った知らせは良いものでした。Mal-Ravanal は死ん"
 "だのです！ Wesnoth の戦士たちが Mal-Ravanal を倒していたときに、マーフォーク"
 "は Jotha でアンデッドを打ち破ったのでした。邪悪な魔術師がいないと知ると、マー"
-"マンたちは緊張を解き、熱心に再建に取り組みました。Jotha の町はすぐに復興しま"
-"した。"
+"フォークたちは緊張を解き、熱心に再建に取り組みました。Jotha の町はすぐに復興"
+"しました。"
 
 #. [message]: speaker=narrator
 #: data/campaigns/Dead_Water/scenarios/13_Epilogue.cfg:39
@@ -3140,12 +3158,17 @@ msgstr "マーマンの一般市民"
 
 #. [unit_type]: id=Merman Citizen, race=merman
 #: data/campaigns/Dead_Water/units/Citizen.cfg:17
+#, fuzzy
+#| msgid ""
+#| "Merfolk are mostly peaceful, but will fight to defend their homes. In "
+#| "this situation, even merfolk with no weapons or training can be dangerous."
 msgid ""
 "Mermen are mostly peaceful, but will fight to defend their homes. In this "
 "situation, even mermen with no weapons or training can be dangerous."
 msgstr ""
-"ほとんどのマーマンは平和主義者ですが、住処を守るためには戦います。このような"
-"状況下では、武器も持たず訓練も積んでいないマーマンでさえ脅威となり得ます。"
+"ほとんどのマーフォークは平和主義者ですが、住処を守るためには戦います。このよ"
+"うな状況下では、武器も持たず訓練も積んでいないマーフォークでさえ脅威となり得"
+"ます。"
 
 #. [unit_type]: id=Kraken, race=monster
 #: data/campaigns/Dead_Water/units/Kraken.cfg:5
@@ -3212,8 +3235,10 @@ msgstr ""
 "ている熟練者にはそれほどの感銘を与えることはありません。"
 
 #: data/campaigns/Dead_Water/utils/dw-utils.cfg:72
+#, fuzzy
+#| msgid "Undead Forces"
 msgid "Merman Forces"
-msgstr "マーマン軍"
+msgstr "アンデッド軍"
 
 #: data/campaigns/Dead_Water/utils/dw-utils.cfg:76
 msgid "Kai Krellis"
@@ -3226,13 +3251,19 @@ msgstr "ストームトライデント"
 
 #. [object]: id={ID}
 #: data/campaigns/Dead_Water/utils/items.cfg:11
+#, fuzzy
+#| msgid ""
+#| "This trident gives merfolk the power to throw lightning at their enemies."
 msgid "This weapon shoots powerful lightning bolts at your enemies."
-msgstr "この武器は敵に向かって強力な光の矢を放ちます。"
+msgstr ""
+"このトライデントを持ったマーフォークは、敵に電気の矢を放つことができます。"
 
 #. [object]: id={ID}
 #: data/campaigns/Dead_Water/utils/items.cfg:13
+#, fuzzy
+#| msgid "Only the merfolk can use this item."
 msgid "Only a merman can use this item."
-msgstr "このアイテムはマーマンのみが使用できます。"
+msgstr "このアイテムはマーフォークのみが使用できます。"
 
 #. [effect]: type=fire
 #: data/campaigns/Dead_Water/utils/items.cfg:33
@@ -3357,3 +3388,9 @@ msgid ""
 msgstr ""
 "この攻撃は厳しい打撃を与えるので、敵は混乱してZOCを維持することができなくなっ"
 "てしまいます。この効果は敵の次のターンでなくなります。"
+
+#~ msgid "Now we must defeat the undead."
+#~ msgstr "さあ、アンデッドを倒さねば。"
+
+#~ msgid "user_team_name^Merfolk"
+#~ msgstr "マーフォーク"
diff --git a/po/wesnoth-help/ja.po b/po/wesnoth-help/ja.po
index ac4e0b53ee7c..0ae517cb6ccd 100644
--- a/po/wesnoth-help/ja.po
+++ b/po/wesnoth-help/ja.po
@@ -5397,6 +5397,20 @@ msgstr ""
 "のダメージがそれぞれ1ずつ減少します。"
 
 #: data/core/units.cfg:11
+#, fuzzy
+#| msgid ""
+#| "Despite orcs’ reliance on raw strength, few of their children are "
+#| "destined to grow to possess any. Goblins are, despite their appearance, "
+#| "born as siblings to the orcs and members of the same race. While other "
+#| "races usually bear children singly or in pairs, orcs will have large "
+#| "litters of children all at once, causing their populations to explode. "
+#| "Within any litter, there will be only one or two who grow to the strength "
+#| "of a “true orc”, a few who are born slightly smaller and weaker, and the "
+#| "rest, often a full half of any litter, are much weaker and destined to be "
+#| "goblins. Almost as newborns the class system of orcish society is "
+#| "visible, with the weak put in their place by their stronger siblings. The "
+#| "stronger ones will routinely grab most of the food and thus grow stronger "
+#| "still, while their weaker siblings do not."
 msgid ""
 "Despite orcs’ reliance on raw strength, few of their children are destined "
 "to grow to possess any. Goblins are, despite their appearance, born as "
@@ -5999,7 +6013,7 @@ msgstr "デューンフォーク"
 #| "light troops in war, or as escorts for trading caravans during times of "
 #| "peace.\n"
 #| "\n"
-#| "The Dunefolk's inclination towards trade and exploration has allowed "
+#| "The Dunefolk’s inclination towards trade and exploration has allowed "
 #| "their cities to amass immense fortunes, a fact regarded both with "
 #| "admiration and envy by other races. Mutual interests have fostered "
 #| "cordial relations with neighboring Naga tribes, but more secretive races "
@@ -6020,7 +6034,7 @@ msgstr "デューンフォーク"
 #| "especially loathe the perversions of necromancy and the dark arts, even "
 #| "more so than other races.\n"
 #| "\n"
-#| "The Dunefolk's inquisitive and explorative nature does not preclude "
+#| "The Dunefolk’s inquisitive and explorative nature does not preclude "
 #| "military strength. Not only do they field nimble light troops, "
 #| "cataphracts, and heavily armored infantry, but their keen knowledge of "
 #| "technology grants them a decisive advantage over their opponents. When "
@@ -6028,7 +6042,7 @@ msgstr "デューンフォーク"
 #| "certainly their deployment of ferocious and bizarre beasts. From the "
 #| "majestic Roc to the imposing Wyvern, their synergy with these creatures "
 #| "allows for great versatility in combat. The origins of this tradition "
-#| "likely lie in the heritage of the Dunefolk's distant past in the exotic "
+#| "likely lie in the heritage of the Dunefolk’s distant past in the exotic "
 #| "far corners of Irdya."
 msgid ""
 "An offshoot of a forgotten nomadic civilization, the Dunefolk lay claim to "
@@ -6735,7 +6749,7 @@ msgstr "最大 HP +1"
 #~ "useful in hunting for food. Falcons occasionally find a role on the field "
 #~ "of war as well, with certain falconers training their birds to "
 #~ "distinguish between friend and foe, making them a useful asset to aid in "
-#~ "an army's charge."
+#~ "an army’s charge."
 #~ msgstr ""
 #~ "鷹は猛禽類の一種であり、並外れた速度で知られています。他の猛禽類と比べる"
 #~ "と、体重が軽く爪もそれほど強力ではありませんが、そのかわり嘴を使って獲物を"
diff --git a/po/wesnoth-lib/ja.po b/po/wesnoth-lib/ja.po
index 3c12668cb66f..e3babaa71119 100644
--- a/po/wesnoth-lib/ja.po
+++ b/po/wesnoth-lib/ja.po
@@ -4420,13 +4420,17 @@ msgstr "AIが操作するユニットの移動時にアニメーションを行
 
 #. [column]
 #: data/gui/window/preferences/01_general.cfg:83
+#, fuzzy
+#| msgid "Scroll speed:"
 msgid "Speed:"
-msgstr "速度："
+msgstr "スクロール速度："
 
 #. [column]
 #: data/gui/window/preferences/01_general.cfg:88
+#, fuzzy
+#| msgid "Make units move and fight faster"
 msgid "Units move and fight speed"
-msgstr "ユニットの移動と戦闘の速度を変更します"
+msgstr "ユニットの移動と戦闘を高速化します"
 
 #. [toggle_button]: id=disable_auto_moves
 #: data/gui/window/preferences/01_general.cfg:104
@@ -4987,11 +4991,15 @@ msgstr "統計情報"
 
 #. [widget]: id=tab_label
 #: data/gui/window/statistics_dialog.cfg:485
+#, fuzzy
+#| msgid "Scenarios"
 msgid "Scenario"
 msgstr "シナリオ"
 
 #. [widget]: id=tab_label
 #: data/gui/window/statistics_dialog.cfg:498
+#, fuzzy
+#| msgid "Campaigns"
 msgid "Campaign"
 msgstr "キャンペーン"
 
@@ -6251,8 +6259,10 @@ msgid "Select at which point to begin this campaign."
 msgstr "どこからキャンペーンを開始しますか？"
 
 #: src/gui/dialogs/multiplayer/mp_join_game.cpp:193
+#, fuzzy
+#| msgid "No eras found."
 msgid "No era information found."
-msgstr "時代の情報が見つかりません。"
+msgstr "時代が存在しません。"
 
 #: src/gui/dialogs/multiplayer/mp_join_game.cpp:248
 msgid "Computer Player"
@@ -7574,6 +7584,16 @@ msgstr ""
 #~ msgid "Sign Up"
 #~ msgstr "登録"
 
+#~ msgid "Acceleration factor:"
+#~ msgstr "高速化の倍率："
+
+#~ msgid ""
+#~ "Speed at which unit moves and animations play when ‘Accelerated speed’ is "
+#~ "enabled or when Shift is held down in-game"
+#~ msgstr ""
+#~ "ユニットの移動とアニメーションの速度です。「高速化」が有効になっているか、"
+#~ "ゲーム中で Shift キーを押している間に適用されます。"
+
 #~ msgid "Limit FPS"
 #~ msgstr "FPS 制限"
 
@@ -7610,3 +7630,9 @@ msgstr ""
 #~ "サポートされていない画像のフォーマットです。\n"
 #~ "\n"
 #~ "代わりに、PNG でスクリーンショットを保存します。"
+
+#~ msgid "All Scenarios"
+#~ msgstr "すべてのシナリオ"
+
+#~ msgid "$count|× $name"
+#~ msgstr "$count|× $name"
diff --git a/po/wesnoth-multiplayer/ja.po b/po/wesnoth-multiplayer/ja.po
index 7d482ecabd4e..bc9f3b2c566f 100644
--- a/po/wesnoth-multiplayer/ja.po
+++ b/po/wesnoth-multiplayer/ja.po
@@ -1,24 +1,14 @@
-# #-#-#-#-#  wesnoth-multiplayer.cpp.pot (PACKAGE VERSION)  #-#-#-#-#
-# SOME DESCRIPTIVE TITLE.
-# Copyright (C) YEAR Wesnoth development team
-# This file is distributed under the same license as the PACKAGE package.
-#
 # Translators:
-# Automatically generated, 2005
-# MATSUMOTO Yuji <matumoto@marron.cias.osakafu-u.ac.jp>, 2005
-# RatArmy <broadbarredfirefish@gmail.com>, 2015-2018
-# S.Suto, 2016
-# suto3, 2016
-# 家庭的の人 <kateitekino_hito@yahoo.co.jp>, 2017
+# RatArmy <broadbarredfirefish@gmail.com>, 2018
 msgid ""
 msgstr ""
-"Project-Id-Version: Wesnoth-Dev Japanese\n"
+"Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: http://bugs.wesnoth.org/\n"
 "POT-Creation-Date: 2018-03-17 18:31 UTC\n"
-"PO-Revision-Date: 2018-04-23 00:30+0000\n"
-"Last-Translator: RatArmy <broadbarredfirefish@gmail.com>\n"
-"Language-Team: Japanese (http://www.transifex.com/wesnoth-jp/wesnoth-dev-"
-"japanese/language/ja/)\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: RatArmy <broadbarredfirefish@gmail.com>, 2018\n"
+"Language-Team: Japanese (https://www.transifex.com/wesnoth-jp/teams/60513/"
+"ja/)\n"
 "Language: ja\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -1712,6 +1702,8 @@ msgstr "2p — 千刺の要塞"
 
 #. [multiplayer]: id=multiplayer_thousand_stings_garrison
 #: data/multiplayer/scenarios/2p_Thousand_Stings_Garrison.cfg:39
+#, fuzzy
+#| msgid "A strange place. Designed by Doc Paterson."
 msgid "A strange place. Designed by Doc Paterson"
 msgstr "奇妙な場所だ。Designed by Doc Paterson"
 
diff --git a/po/wesnoth-nr/ja.po b/po/wesnoth-nr/ja.po
index b908db079092..da990cb53398 100644
--- a/po/wesnoth-nr/ja.po
+++ b/po/wesnoth-nr/ja.po
@@ -3117,6 +3117,12 @@ msgstr ""
 
 #. [message]: speaker=Tallin
 #: data/campaigns/Northern_Rebirth/scenarios/05a_01_The_Pursuit.cfg:2057
+#, fuzzy
+#| msgid ""
+#| "I am afraid times have changed much. Our first king, Haldric I, fled the "
+#| "Green Isle with the Wesfolk, the orcs in pursuit. He came ashore on this "
+#| "land that we now call the Great Continent and destroyed the Lich-Lord "
+#| "Jevyan before founding the Kingdom of Wesnoth. That was centuries ago."
 msgid ""
 "I am afraid times have changed much. Our first king, Haldric I, fled from "
 "the Green Isle with the Wesfolk and the orcs in pursuit. He came ashore on "
@@ -4708,17 +4714,23 @@ msgstr "Ro’Sothian"
 
 #. [objective]: condition=win
 #: data/campaigns/Northern_Rebirth/scenarios/07a_Settling_Disputes.cfg:323
+#, fuzzy
+#| msgid "Save Stalrag from Ro’Sothian"
 msgid "Save Stalrag from Ro’Sothian."
 msgstr "Ro'Sothian から Stalrag を救う。"
 
 #. [objective]: condition=lose
 #: data/campaigns/Northern_Rebirth/scenarios/07a_Settling_Disputes.cfg:327
+#, fuzzy
+#| msgid "Death of Tallin"
 msgid "Death of Tallin."
-msgstr "Tallinの死。"
+msgstr "Tallin の死"
 
 #. [objective]: condition=lose
 #: data/campaigns/Northern_Rebirth/scenarios/07a_Settling_Disputes.cfg:331
 #: data/campaigns/Northern_Rebirth/scenarios/07a_Settling_Disputes.cfg:701
+#, fuzzy
+#| msgid "Death of Stalrag"
 msgid "Death of Stalrag."
 msgstr "Stalrag の死"
 
@@ -5023,6 +5035,8 @@ msgstr "牢に戻るんだ、友よ。"
 
 #. [objective]: condition=win
 #: data/campaigns/Northern_Rebirth/scenarios/07a_Settling_Disputes.cfg:693
+#, fuzzy
+#| msgid "Capture Ro’Arthian"
 msgid "Capture Ro’Arthian."
 msgstr "Ro'Arthian を捕縛する"
 
diff --git a/po/wesnoth-sota/ja.po b/po/wesnoth-sota/ja.po
index 7dc75b9c55c1..aeb76c8cc1cf 100644
--- a/po/wesnoth-sota/ja.po
+++ b/po/wesnoth-sota/ja.po
@@ -2874,12 +2874,16 @@ msgstr "Crelanu を倒す"
 
 #. [note]
 #: data/campaigns/Secrets_of_the_Ancients/scenarios/16_The_Mage.cfg:83
+#, fuzzy
+#| msgid ""
+#| "Ras-Tabahn is slowed and will lose four hitpoints every turn. He will die "
+#| "if he reaches zero."
 msgid ""
 "Ras-Tabahn is slowed. He will also lose four hitpoints every turn unless "
 "this amount is modified by healing."
 msgstr ""
 "Ras-Tabahn は遅化状態となっています。 また、回復を行わなければ、毎ターン 4HP "
-"を失います。"
+"を失います。HP が 0 となれば、彼は死んでしまいます。"
 
 #. [note]
 #: data/campaigns/Secrets_of_the_Ancients/scenarios/16_The_Mage.cfg:86
@@ -2980,14 +2984,17 @@ msgstr "そのうち分かるわい。"
 
 #. [message]: speaker=narrator
 #: data/campaigns/Secrets_of_the_Ancients/scenarios/16_The_Mage.cfg:363
+#, fuzzy
+#| msgid ""
+#| "Ras-Tabahn is sick. He is slowed, and will lose four hitpoints every "
+#| "turn. He will die if he reaches zero."
 msgid ""
 "Ras-Tabahn is sick. He is slowed, and will lose four hitpoints every turn. "
 "He will die if he reaches zero. Villages will heal him four points, and he "
 "will lose only two if he is resting."
 msgstr ""
-"Ras-Tabahnは病に蝕まれています。彼は遅化状態となり、毎ターンHPを4づつ失いま"
-"す。HPが0になれば彼は死んでしまいます。村にいれば毎ターン4回復でき、身動きを"
-"とらずにいればHPの減少を2に抑えることができます。"
+"Ras-Tabahn は病に冒されています。そのため、遅化状態となり、毎ターン 4HP を失"
+"います。HP が 0 となれば、彼は死んでしまいます。"
 
 #. [message]: speaker=Ardonna
 #: data/campaigns/Secrets_of_the_Ancients/scenarios/16_The_Mage.cfg:391
@@ -3163,9 +3170,9 @@ msgid ""
 "spirit, but only once it has been unbound from the body. To become a lich, "
 "the mage must make the necessary incantations with his dying breaths. He "
 "thus binds his own spirit in much the same way he binds the spirits of "
-"others... An altar serves to hold his soul in the physical plane long "
-"enough to make the transition, and a suitable object must be found to hold "
-"the consciousness for one crucial moment when the body expires."
+"others... An altar serves to hold his soul in the physical plane long enough "
+"to make the transition, and a suitable object must be found to hold the "
+"consciousness for one crucial moment when the body expires."
 msgstr ""
 "Wesnoth 歴 23 年 6 月 9 日\n"
 "\n"
@@ -3937,7 +3944,7 @@ msgstr "つるはし"
 #. [unit_type]: id=Ancient Lich SotA, race=undead
 #: data/campaigns/Secrets_of_the_Ancients/units/Necro_Ancient_Lich.cfg:4
 msgid "Ancient Lich"
-msgstr "古代リッチ"
+msgstr ""
 
 #. [unit_type]: id=Ancient Lich SotA, race=undead
 #: data/campaigns/Secrets_of_the_Ancients/units/Necro_Ancient_Lich.cfg:18
diff --git a/po/wesnoth-utbs/ja.po b/po/wesnoth-utbs/ja.po
index bdbae5c317c8..47135a4f3b07 100644
--- a/po/wesnoth-utbs/ja.po
+++ b/po/wesnoth-utbs/ja.po
@@ -19798,6 +19798,22 @@ msgstr "幻の城の主塔"
 #~ msgid "Lyer"
 #~ msgstr "Lyer"
 
+#~ msgid "The Long Dark"
+#~ msgstr "長い夜"
+
+#~ msgid "alien regenerates"
+#~ msgstr "侵略者の再生"
+
+#~ msgid "female^alien regenerates"
+#~ msgstr "侵略者の再生"
+
+#~ msgid ""
+#~ "The unit will heal itself 100 HP per turn. If it is poisoned, it will "
+#~ "remove the poison instead of healing."
+#~ msgstr ""
+#~ "このユニットはターンごとに自身の HP を 100 回復します。毒を受けているな"
+#~ "ら、回復する代わりに毒を取り除きます。"
+
 #~ msgid "Dustbok"
 #~ msgstr "サンドボック"
 
diff --git a/po/wesnoth/ja.po b/po/wesnoth/ja.po
index 4ca2d3b4f838..24fc30bf50aa 100644
--- a/po/wesnoth/ja.po
+++ b/po/wesnoth/ja.po
@@ -1724,9 +1724,12 @@ msgstr ""
 
 #. [object]
 #: data/core/macros/items.cfg:521
+#, fuzzy
+#| msgid ""
+#| "This trident gives merfolk the power to throw lightning at their enemies."
 msgid "This trident allows a merman to shoot electric bolts at his enemies!"
 msgstr ""
-"このトライデントを持ったマーフォークは、敵に電気の矢を放つことができます！"
+"このトライデントを持ったマーフォークは、敵に電気の矢を放つことができます。"
 
 #. [effect]: type=fire
 #: data/core/macros/items.cfg:525
@@ -8204,6 +8207,23 @@ msgstr "$player の計画を非表示"
 msgid "Whiteboard Options"
 msgstr "行動予定オプション"
 
+#~ msgid "Use experimental PRNG combat"
+#~ msgstr "実験的な PRNG 戦闘を使用"
+
+#~ msgid ""
+#~ "Enables more determinstic chance-to-hit calculations. This is an "
+#~ "experimental feature designed to bring the observed hit/miss rate more in "
+#~ "line with the displayed percentages.\n"
+#~ "\n"
+#~ "Note: this option only affects singleplayer, and the ‘Save random seed’ "
+#~ "option must also be enabled when creating a game for this to work."
+#~ msgstr ""
+#~ "より決定論的な命中率の計算を行います。これは実験的な機能は、観測される命中"
+#~ "結果を、表示されている確率により近づけるようにデザインされています。\n"
+#~ "\n"
+#~ "メモ：このオプションはシングルプレイヤーでのみ適用されます。また、「乱数の"
+#~ "シードを保存」オプションをゲーム作成時に有効にしなｋれば動作しません。"
+
 #~ msgid "Trailers"
 #~ msgstr "トレーラー"