Miu is a devoted wife living a happy marriage, yet she struggles with the frustration of being unable to conceive. Seeking a fresh start and a way to improve her fertility, she visits a local beauty spa she discovered online. Little does she know, the massage therapist working there has sinister intentions. Taking advantage of her trusting nature and vulnerability, the therapist secretly administers a potent aphrodisiac during her session. As the drug takes hold, Miu’s body becomes hyper-sensitive, and her resistance crumbles under his expert, predatory touch. She finds herself unable to deny his advances as he explores her most intimate areas, ultimately leading to a scandalous encounter where he takes her husband's place in the bedroom.
This illicit experience leaves a lasting mark on Miu’s psyche. Haunted by the memory of the therapist’s large cock and the intense pleasure she felt, she begins to pull away from her husband. Every attempt at intimacy with her spouse is met with excuses and coldness, as her mind is constantly fixated on the man who awakened her hidden desires. The thrill of the forbidden has completely consumed her, making her domestic life feel dull and unfulfilling in comparison to the raw, primal satisfaction she experienced at the spa.
Unable to suppress her cravings any longer, Miu makes the bold decision to return to the clinic on her own terms. She seeks out the therapist, no longer a victim of his schemes but a willing participant in her own degradation. She begs him to take her again, desperate for his touch and hopeful that he will succeed where her husband has failed. This gripping story explores the descent of a naive woman into a world of unchecked desire and secret infidelity, where the line between pleasure and obsession blurs completely.