Horio is a straight-laced teacher who satisfies his sexual desires by searching for girls he likes on support sites. On this day as well, she succeeded in making an appointment with a cute girl, but the person who showed up there was Honoka, the most serious student in her grade. Horio can't hide his dismay, but he accepts the forceful advances of Honoka, who seems different than usual, and ends up having a physical relationship with her.