Suzu and her older brother, who were annoyed by the bad boys' behavior and noise. While his older brother is away, Suzu's body is toyed with by bad boys. His older brother comes home, but he can't do anything when he sees how Suzu is and stands still. My older brother gets excited when he sees his sister being fucked. The brother would masturbate while looking at her sister. And Suzu also feels the situation and becomes deeply addicted to it.
