Koharu has a body that sweats easily, and whenever she gets nervous, her armpits become drenched in sweat. Marie, who enjoys bodily fluids, laps up the sweat and comments on its taste and smell, creating a deeply humiliating scenario. The video consists of four episodes, each unfolding in a different situation. The amount and condition of Koharu's sweat, as well as Marie's reactions, are meticulously depicted, making for an intensely engaging experience.