Suffering from premature ejaculation, I acquired the "Inversion Drug" and began relentlessly thrusting into women in uniforms until they reached orgasm. (Nagase Yui, MIAA-217)

The opponent is a young girl who says infuriating things. He uses a drug to change her attitude from dislike to praise, making her more confident and subjecting her to repeated, intense thrusting and orgasms...