A year into her marriage, Yuri finds herself walking a separate path from her husband. Their once passionate connection has faded into a frustrating, sexless existence, leaving both her body and soul longing for fulfillment. The tension is palpable, and Yuri desperately needs a release she isn't getting at home.

One day, seeking solace and maybe a physical reset, she decides to undergo a "special" aesthetic treatment. Her therapist is none other than Satoshi, a junior from her school days. She rationalizes the decision: "This is just a treatment… It’s simply something to soothe my nerves and my tired body..."

The treatment begins innocently enough, but things quickly heat up. Satoshi's strong, manly hands, slick with oil, start their work. They trace pathways across her thighs, up to her hips, and then dangerously close to the region between her legs. As his touch zeroes in on her most sensitive areas, Yuri's carefully constructed defenses crumble. She is overwhelmed by the pure, forbidden pleasure of stimulation given by another man.

She desperately tries to conceal her growing excitement from the therapeutic context, but Satoshi, sharp and perceptive, senses her rising arousal. Recognizing the unspoken desire, he decides to cross the professional boundary and push things further than just a treatment—igniting a dangerous encounter that threatens to shatter her marriage.