Rion, the daughter of Shota's mother's acquaintance, comes to Shota's house as a nanny and helper. Rion has a girly look and big, glamorous breasts, so Shota is very excited! From that day on, Shota uses his child privileges to try and play pranks on Rion, trying to touch her big breasts. There is a bath scene, and there is plenty of clothed groping, so this is a story for Shota maniacs!