Natsu is a girl who grew up in a single-parent household. After the man living next door lost his job, he became a completely different person, and he started to stay in his smelly, trashy room, which annoyed her. One day, she found a wallet and reluctantly went to return it, only to be suddenly dragged into the room. "You're looking down on me! You're mocking adults!" He forcibly strips her of her uniform, soils her with semen, and cums inside her repeatedly. The girl's sanity gradually crumbles as she squirts and is deprived of the freedom to urinate.