After getting married, Nana decided to help out at her husband's inn. However, her stepson Kenta doesn't look happy, saying, "You're only after the money, aren't you?" She tries to get him to agree to the marriage, but he pushes her down and says, "Then do as I say." Since then, Nana has endured many humiliations, such as having to provide public body-washing services to customers and giving them a blowjob after meals, but she has endured them for the sake of her happiness with her husband. Then, one night, Kenta sneaks into her bedroom and offers a trade-off in exchange for agreeing to the marriage...