Mifumi is a newlywed and she's been letting another guy sleep with her to help her husband's dream come true.Her husband, Ryo, works at a fresh produce store. Even though they aren't rich, they live a quiet and happy life together and have sex rich with love. But, one day, Ryo's boss, the manager of the fresh produce store, visits her at home when Ryo is at work. He tells her to become his mistress in exchange for Ryo being promoted to manager... Mifumi knows it's been a long-time dream of Ryo's to become a manager, so she lets his boss have his way with her body for Ryo's sake... Sex with Ryo is full of love, but dull, and sex with his boss has no love at all, but it's wild and makes her cum over and over... Mifumi tells herself she loves Ryo and is being loyal to him, but she starts to become addicted to having sex with Ryo’s boss...