Kurou, a widow after her older husband's death, is visited by Yuuji, a former client from her days working in the water trade. Concerned for the weakened Kurou, Yuuji tries to be considerate, but he can't resist her allure as a widow and assaults her. Though Kurou thought it was wrong to feel pleasure and disloyal to her husband, she gradually becomes captivated by Yuuji's dominance...