I think I was drinking with my girlfriend at the pub. However, by chance, he starts a trivial argument with Tatsuya, a student who drinks at the next seat. - As she struggles with nothing else, the distance between her and her relationship with Tatsuya shortens, and before she knows it, she has a relationship with Tatsuya. And I think Tatsuya gave me the key to the room so that I could see him at any time. - Using the key, she spends time doing housework in Tatsuya's room, and when she returns home, she accepts Tatsuya's young and active sexual desire over and over again in a limited time.