一宿一飯 いっしゅくいっぱん
isshukuippan

Noun

1. (being beholden to someone for a favor of) a night's lodging and a meal

Yojijukugo
かれからの おもいがけないプレゼントが とどいたよ。少々 しょうしょう いち宿 じゅく いっ はん恩義 おんぎでも かんじてくれたのかな。
karekarano omoigakenai purezentoga todoitayo. shōshōwa isshukuippanno ongidemo kanjite kureta nokana.
We got an unexpected present from him. I guess he felt a little obligated after what we did for him.