Kento-kun thought he was a sadist, but maybe he's actually a masochist? Lately, Kento-kun has been thinking about this. His partner this time, Machi-chan, loves to attack, and is trying to develop Kento-kun's still-developing nipples into erogenous zones. While they joke around in Kansai dialect, they attack each other, and it's exciting to watch them get into serious mode.