A man pretends to have made a mistake and gets on a girls' school bus. The girls approach the fidgety man, unaware that he's pretending. They purposely show him their panties and the girls rub their breasts together, and as they see the man's panicked expression and his bulging crotch, their mischievous Kokoro turn to excitement... Their desire to do it escalates with intimacy, kissing, handjobs, and blowjobs, and finally they end up with bareback insertion and creampie sex!