Nao works as a clerk at a tax accountant office.Nakata, a tax accountant at an office she respects, was a black tax accountant who laundered money for a gang affiliated company.Nao, who has learned the secret, tries to accuse her, but she is confined by Nakata and gang member Kita, and her chastity is stolen. Nao is given intense training by her peers, saying, "Don't ever feel like accusing her again."Nao's spirit was indecently broken into hell that never ended.