High School Girl Confinement and Rape - Brutal Gangbang Side Story - Will You Love Me When I'm Dirty?

Mari (Minami) has been constantly humiliated by her stepfather since childhood and has closed off her heart. Her homeroom teacher, Shido, kindly encourages her as she seems lonely every day... Mari gradually becomes attracted to his kindness. Meanwhile, a boy in the same class finds out about Mari's relationship with her stepfather...