Yukina - 世界著名的麻将运动员被关在她肮脏的公寓 第1部分

Yukina works for a married delicatessen. One day, a customer suddenly pushes her down in the man's room and pushes himself inside her, and she is placed under house arrest. The man's training escalates and she has sex in front of her inexperienced brother. She is to use incontinence and a vibrator, but gradually awakens to pleasure and develops an affection for the aggressive man.