My friend's wife is a lewd tutor

Atsushi, who failed his university entrance exam, is what the world calls a recluse. Unable to see this, my father asked his colleague's wife, Mirai, who had previously worked as a private tutor, to tutor him. Mirai agrees and immediately starts teaching Atsushi, but Atsushi has no interest at all... Mirai thinks about how to get him to concentrate on his studies and comes up with a strategy. His idea was to use his proud body to motivate Atsushi.