"For the sake of the contract... I put on this underwear and chose my 'pillow'." When a friend who acted as a guarantor disappears, her husband finds himself chasing a huge debt. His wife, Marina, works as an insurance salesperson and needs to increase her income by taking on large contracts in order to repay the debt. However, she is unable to secure the number of contracts she would like. One day, by chance, she meets Ozawa, the president of a large corporation, while visiting a place. Ozawa has his eye on Marina's mature sex appeal and body, and offers to sign as many contracts as she likes if he can satisfy his desires. For her husband's sake, Marina makes up her mind, puts on the lustrous, high-end underwear that Ozawa likes, and goes out to sell again. Little did she know that this will turn into a physical contract from which there is no turning back...