連帯保証人となっていた友人が失踪し、夫が多額の借金を負うことになった。保険の外交員として働く妻の未来も返済の為、大口の契約を取り収入を増やさなければならなかった。しかし、契約は思うように得られない。そんな時、たまたま訪問先で大企業の会長・小沢と出会う。小沢は未来の美貌に目をつけ、欲望を満たすことができれば好きなだけ契約すると提案した。夫の為に未来は覚悟を決め、小沢が好む艶やかで高級な下着を纏い、再び営業に出向く。それが後戻りのできない肉体契約になるとも思わず…。

When her friend, who had acted as a co-signer on a loan, disappeared, her husband was left with a huge debt. Mirai, working as an insurance salesperson, had to increase her income by securing large contracts to help repay the debt. However, contracts weren't coming in as easily as she'd hoped. Then, by chance, she met Ozawa, the chairman of a large corporation, during a visit. Ozawa, captivated by Mirai's beauty, offered to sign as many contracts as she wanted if she could satisfy his desires. For her husband's sake, Mirai made up her mind, donned the glamorous, high-end lingerie Ozawa favored, and went out on sales calls again. Little did she know that it would turn into a physical contract from which there was no turning back…