It is summer, and the school's roof is the perfect place for a nice, relaxing break, away from all the noise and people. That is what a certain high school student thought while quietly reading his book. However, unlike other days, he soon ends up in a complicated situation after finding his classmate, the gyaru Yamada, pleasuring herself on that same roof!
But he is soon discovered by her, and to guarantee that he will keep his mouth shut, Yamada forces him to strip so she can take pictures of his naked body. However, after seeing "it" stand at attention, she opts for a more intimate solution to her problem.