After having fun at the beach, they came to an inn. They enjoyed themselves by going to saunas, outdoor hot springs, and playing mahjong. With Arashi's "kindness," Jun ends up sharing a room with Hajime. To keep her secret, Jun ends up buying men's underwear, and avoiding the bath. But in the end, Jun gets caught by Hajime and gets dragged to the bath. Arashi and Kaya save Jun. With Arashi's proposal, they end up doing a courage test. Arashi and Jun coincidentally pair up. Jun asks Arashi how she feels about Hajime.
海で遊んだ後、一たちは旅館に泊まることになった。そんな中、あらしの気づかいで一と同室にされてしまった潤は、女とばれないように男物の下着を買ったり、一緒にお風呂に行こうとする一から逃げ回ったりするはめになる。結局見つかってしまいお風呂に連れて行かれてしまうが、あらしとカヤに助けられ難を逃れて…。
