HIRUMA, a 17 year old high school student was desperately wanting to have sex with his class mate, TOMONO who he had crush on for a while. HIRUMA`s friend An-pai, despite his bad figure and his unfitting big breasts, even started dating the larger breasted girl Akie. Another friend of HIRUMA, MINE seemed to be getting close to Chizu, a girl who did not know what menses and sex was. One day, HIRUMA catches TOMONO secretly having an affair with their homeroom teacher YOSHIDA. HIRUMA tries to blackmail TOMONO to have sex with him, but TOMONO did not give an inch. But when the affair come to light with TOMONO` s parents, HIRUMA finally asks TOMONO out on a date.