Ota and his wife run a convenience store under a commercial franchise from Yu's company. Every month, they not only have to pay their employees, but also pay royalties to the main headquarters. Recently, with new stores popping up constantly, their customer base has been dwindling, causing financial difficulties for both of them. Despite multiple attempts to negotiate a reduction in the royalty fees with the headquarters, they have been unsuccessful. Ota's wife falls ill from overwork, and their son is about to take an entrance exam for a private school. The continuous pressure weighs heavily on Ota's shoulders, and Yu, seeing the poor business situation, adds even more pressure on Ota. Pushed to the edge, Ota snaps and wants to destroy this despicable and contemptible person. He coerces Yu into serving his sexual desires by using his strong sexual prowess. With his sexual dominance, Ota manages to subdue Yu, making her comply to work at the store, speak favorably to the headquarters, and most notably, agree to be his lover, allowing him to have sex with her whenever he desires!