Eriko, Yuma, and Ayano, who are looking forward to their admiration for high school girls, will go on a school scouting during spring break. The harsh reality of the girls' high school I saw there. There, the three meet boarding students Kada, Himeji, and Ogawa. Kada and his friends mistook Eriko and her high school uniform for older people. Eriko, who can't draw anymore, tells the story of "Sakuna's High School Life" in a random way.