元格闘技チャンピオンで今は専業主婦の大槻ひびき。夜中に出歩いている近所の悪ガキ優斗に格闘技で勝ったら「言うことを聞け！」と勝負を挑む。勝負に負け悔しさのあまりひびきにこっそり媚薬を盛り再戦を挑む優斗。媚薬のせいで力が出せず優斗に負けるひびき。再度優斗に勝負を挑むひびきだが、「イッたら僕のいいなりだよ」と言われ、媚薬でイカされ続けその後も言いなり奴●になってしまう。

Hibiki Otsuki is a former martial arts champion who is now a housewife. She challenges Yuto, a mischievous neighborhood *** who is out at night, to a fight, telling him that if he can beat her, he'll have to obey her. After losing the fight, Yuto, frustrated, secretly slips an aphrodisiac into Hibiki's drink and challenges her to a rematch. Hibiki is unable to use her strength due to the aphrodisiac and loses to Yuto. Hibiki challenges Yuto to a fight again, but he tells her, "If you cum, you'll do whatever I say," and continues to make her orgasm with the aphrodisiac, after which she becomes his obedient slave.