One day, Mei, a wife who works at a local diner that's popular for its "free refills," is approached by the owner, who asks her if she can give him a handjob in exchange for a raise in her hourly wage. Due to financial difficulties, she reluctantly agrees to satisfy the perverted owner's sexual needs, but he demands handjobs and oral sex one after another. Eventually, she allows him to have sex. After experiencing his relentless ejaculation that thrusts into her uterus, the wife begins to ask for more sex herself...