Erina visits the home of her classmate Ichiro, who has been a recluse. However, no one answers when she presses the intercom. Just as she is about to leave, Kenta appears, claiming to be Ichiro's father. He bluntly calls his own son a 'good-for-nothing brat.' Angered by these words, Erina ignores Kenta's attempts to stop her and enters Ichiro's room. As soon as Ichiro sees Erina, he lunges at her and pins her down. Then the man in the room and Kenta join in, and they ravage the terrified Erina...
