The performance of the construction company that her husband Masao was running deteriorated, and Ozawa decided to buy it. Masao is in charge of sales and Yurine is to work under Ozawa as a secretary, but Yurine has a secret. That was because when her business was in trouble, she took on a large amount of debt. When she discusses this with Ozawa, Ozawa agrees to become her mistress in exchange for lending her money. And, as part of his daily routine as her secretary, Ozawa wraps his snake-like tongue around Yurine's glossy lips and devours her ripe body...
