Erika, who is doing her teaching practicum at her alma mater, one day visited the home of Masaki, a student in her class who refuses to go to school. Although teachers advised her that this was not something a student teacher should do, Erika had been saved by a mentor herself and wanted to save the student, so she came for a home visit. However, as soon as Masaki welcomed Erika, he made her drink tea laced with sleeping pills and pinned her down. In the midst of the act, his uncle, a yakuza, and his thugs appeared and gang-raped Erika…
