Ota and his wife opened a convenience store and obtained a commercial franchise from Yu's company. Every month, they have to pay salaries to employees, and they also have to pay royalties to the headquarters. Recently, new stores have been continuously opening, causing a decrease in customers, and both are facing financial difficulties. Despite several attempts to negotiate a lower royalty rate with the headquarters, they have been unsuccessful. Ota's wife fell ill from overwork, and their son is about to take an entrance exam for a private school. The pressure is mounting on Ota's shoulders, with Yu adding more stress due to the poor business situation. Finally, Ota snaps and wants to destroy this despicable and contemptible person. He continuously abuses and forces Yu to fulfill his sexual desires. Using his strong sexual prowess, Ota has conquered Yu, making her obey, work as an employee in the store, speak positively to the headquarters, and especially agree to be his lover, allowing him to have sex whenever he wants!