A high school girl, Ito, and her mother live in a house where her mother lives. The scumbag, who barely works, secretly casts obscene glances at Ito. One night, the man persistently gropes Ito's breasts. "I love your sensitive nipples," he says, kneading her nipples with his fingertips, and despite her disgust, she moans in pleasure. He rubs and pinches them, licks and rolls them around with his tongue... She climaxes from the relentless nipple teasing, but it's not over yet. From then on, he continues to be teased in a lewd manner every night, and the nipple harassment with no way to escape causes him to fall into a premature ejaculation constitution that makes him cum quickly...