Investigation begins after receiving information that there is a school girl who should not be on the school bus of the boy's school. There were children who really got on by mistake and children who pretended to get on by mistake. They are closely attached to school boys in the bus, furthermore sneaky and touched their breasts and buttocks, and escalate to the rubbing action of erection. A school girl who gradually gets into heat in this space full of men, and eventually begins to touch the cock with awkward gestures.