Yume decided to live alone in Tokyo for only two weeks during the summer class at the prep school. Although her feelings are uplifted by her first life alone, she feels anxious about the large amount of garbage and the deafening odor that comes out in front of the entrance of her next room and on the balcony. "Why don't you get rid of it together?" When she squeezed her courage and called out, a dirty brother (Oni) who could continue masturbating even after masturbating and did not post-process came out. I was attacked from behind by a dirty brother who was lustful for uniform panchira while cleaning.