After surviving a sadistic sex party where he was used as a toy and left for dead, Shouji embarks on a mission of vengeance against the women responsible. Utilizing his job as a delivery man to lure and trap his victims, he forces Yuka into submission to act as his informant. After breaking the fitness champion Miku through blackmail and sexual dominance, Shouji secures the name of his next target: Nanami Kirijima.