Wife Hikari [Secret Name: Miyabi] secretly entered a certain soapland without her husband's knowledge. Outwardly quiet and plain, beneath her reserved demeanor lay a growing curiosity about sex and a deep craving for pleasure. Her reason for entering this world wasn't mere curiosity, but a personal challenge to confront the hidden desires buried within herself. Although kissing is normally prohibited in the standard service, it wasn't because she disliked it—rather, she feared losing her composure and drowning completely in pleasure if she ever kissed someone. Before her stood her assigned customer, Furuta, who, captivated by her beauty, forcefully took her lips, and the story begins right there.