After the company run by her husband’s father collapses, her husband is left with a massive debt as its guarantor. His wife Ichika, an insurance agent, must secure lucrative contracts to raise their income, but new clients are hard to find. She meets Ozawa, the greedy chairman of a major corporation, who offers her a contract only if she wears seductive lingerie and sleeps with him. Ichika agrees for her husband’s sake, only to become trapped in a sexual arrangement from which there is no easy return.