Yuna, a housewife whose marital life has cooled down, begins an affair with a student she met at the convenience store where she works part-time, and they become so obsessed with sex that they begin to lust after each other's bodies during work. - I spend my days hiding behind shelves and giving blowjobs so the customers won't find out, and having sex in the store's warehouse or toilet so the store manager won't find out. - Yuna finally decides to break up with her husband and begs him to cum inside her.