Aika married young but worries that domestic life is making her lose her allure. When her husband suggests a beauty treatment, she visits a newly opened spa. The friendly consultation puts her at ease, but lotion is suddenly rubbed all over her body, soaking into her modest black pantyhose and leaving her lower half with an obscene shine. After her humiliating behavior is recorded, she cannot resist the blackmail and is forced to return to the spa again and again. The older masseur’s predatory hands eventually reach into her own home. She should hate every moment of it, yet she finds herself heading back to the spa once more...