With her elegant appearance and competence, Akari, a teacher who never showed any weakness, was popular not only among her colleagues but also among her students. One day, Akari, who had stayed alone in the teachers' room, was forcibly raped by students wearing masks. Moreover, taking advantage of her inability to speak out, they repeatedly forced themselves on her, causing her to gradually lose her sanity... until she eventually became a plaything for the entire class and fell！！
