Mei, a housewife trapped in a cold marriage, prepares aphrodisiac tea in hopes of reigniting her husband’s desire, but it seems to have no effect. Then their air conditioner breaks down, and a cute adult repairman accidentally drinks the spiked tea. When it gives him a raging erection, Mei gets turned on, seduces him, and hooks him with relentless teasing and strict ejaculation control before riding him raw in a sweaty frenzy. By the time the drug finally affects her husband, she has completely lost interest in him. Now Mei keeps inventing appliance problems just to summon the repairman back...