"Natsuho" attends a prestigious girls' school where many young ladies are attending. It was always stylish, and gal-style makeup was also decided perfectly. However, because of "Natsuho", the check of school regulations becomes stricter, and not only classmates but also female teachers are made targets of irritation. It starts with a strange face photography, and it has a vinta and a no-pan bucket. It is scribbled all over the body, it is restrained, it is spied, and the ass is licked and stepped on by friends. It continued to receive sexual irritation which escalated fast silently. A change appears in the state of such a "summer sail".