Female student Aoi visits the home of her classmate, Kenichi, who is a hikikomori. She was tasked with delivering some printouts and other items from Kenichi's desk because their homes are close by, as instructed by their teacher. However, the one who greeted her was a man named Kenta, claiming to be Kenichi's father. He bluntly referred to his own son as a 'worthless brat.' Enraged by these words, Aoi ignored Kenta's attempts to stop her and entered Kenichi's room. As soon as Kenichi saw Aoi, he pinned her down. Then the man in the room and Kenta also joined in the act…
