Sayuki, a member of the assassination group GOD, receives a new assignment: to eliminate Mari, the female commander of a vicious cybercrime syndicate, and Joe, a deranged serial killer. Sayuki infiltrates their hideout but is captured by Mari and her men, who had prior intelligence of her arrival. As she faces gang rape at the hands of the male captors, Mari notices the pendant Sayuki is wearing. Upon seeing it, Mari becomes certain that Sayuki is her long-lost sister. But this reunion is no mere twist of fate—it marks the beginning of a new hell.