F-cup slut Haruki Sato attacks the sensitive nipples of Amateur masochistic men anytime, anywhere. In Shibuya Center Street, she finds a man with sensitive nipples at the scramble crossing, then jacks his nipples in the car parked right in the middle of it, leading him to ejaculate. In an apartment building, she hugs him in the elevator and teases his nipples, then follows him into the house for consensual sex where she keeps touching his nipples. In a cafe, she targets the nipples of a waitress, caressing them despite the presence of other customers, making him ejaculate into her mouth. There are also five other chapters in which she performs public nipple indecency in a city hotel and a shot bar, where even sighing is forbidden.