Since her parents were away for several days, Akira was left home alone. That day, housekeeper Miina arrived, and Akira became instantly obsessed with her big tits and the occasional panty flash. Overcome with excitement, he began pulling one naughty prank after another. Miina gradually responded to his antics, and eventually their relationship intensified—culminating in Akira losing his virginity to her in a full creampie.