noun, noun or participle which takes 'suru'
returning to Japan
Rare term for returning to Japan, typically used in formal or written contexts. More common alternatives include 帰国 (returning to one's country) or 日本に帰る.
彼の帰日が決まった。
His return to Japan has been decided.
来月、帰日する予定
I plan to return to Japan next month.