Hibiki Otsuki, a former martial arts champion and now a housewife, challenges Yuto, a mischievous neighborhood kid who hangs out at night, to a fight, threatening him with "If you beat me, you'll do what I say!" Losing the fight, Yuto, in his frustration, secretly slips an aphrodisiac into Hibiki's drink and challenges her to a rematch. Unable to use her full strength due to the aphrodisiac, Hibiki loses to Yuto again. She challenges him once more, but he tells her, "If you cum, you'll do whatever I say," and continues to make her orgasm with the aphrodisiac...