Minor Text corrections

Dear players,

Thanks to my Japanese friends’ suggestions.
Three Japanese text errors were corrected in this update.

1. 誰か失敗した⇒誰が失敗した
2. 防御がしなさい時⇒防御がしない時
3. フォーカス矢印⇒フォーカスの矢

Many thanks
Enjoy the game

Best regards
John