Female student Manatsu visits the home of her classmate, Masao, who is a hikikomori. She was tasked by their homeroom teacher to deliver some printouts. The excellent student Manatsu accepts and arrives at Masao's house. However, no one answers when she presses the intercom. As she is about to leave, Masao's father, a large man, appears and calls his son a 'good-for-nothing brat.' Angered by these words, Manatsu ignores the warning and enters Masao's room. Upon seeing Manatsu, Masao immediately forces her down…
