Yuna, a housewife whose marriage had become cold, begins an affair with a student she meets at the convenience store where she works part-time, and they become so obsessed with sex that they crave each other's bodies while at work. They hide behind the shelves to give each other blowjobs so that the customers don't notice, and they have sex in the store's storage room and toilet so that the manager doesn't notice. Yuna finally decides to separate from her husband and begs the man to cum inside her.