Matarou Tamada, who entered Y-Gakuen and became a junior high school student, met Jinpei and others belonging to the "YSP Club" and had a fun life. However, one day, a huge salary man suddenly appeared in the school! He is a huge salary man, Miyazawa-san, who has been certified as a school seven wonders, metamorphosis peeping at the women's changing room with a huge face...There seems to be a rumor, too. Jinpei and others are trying to start a mysterious elucidation mission, but Fubuki Himekawa's classmate Akane was looking out for it from outside the club room.
