Kana, a married woman, takes an excessive amount of a potency enhancer in an attempt to overcome her low libido. The effects kick in immediately, leaving her unable to stop craving sex. When a delivery man arrives, she masturbates in front of him, pulls out his cock, gives him a blowjob, and rides him in cowgirl position to experience intense pleasure. Then, a technician arrives for a service call and suddenly French kisses her before taking her from behind, making her climax repeatedly. Kana quickly spirals into sexual addiction. She downs the entire bottle of potency pills, fucks relentlessly with an escort host at home, indulges in creampie sex with strange men, and trips into euphoric ecstasy, her eyes rolling back in bliss.