After a major accident, Seorim is burdened with a huge compensation. He ends up having to infiltrate the lab of the genius inventor Gongwoon as a spy. Gongwoon offers to hire Seorim as an adult toy tester, and Seorim, having no other option, reluctantly accepts the offer…
In a world where people satisfy their sexual needs with robots, nobody has sex with each other anymore. It’s their job to reawaken humanity’s lost instinct!
Strangely, the women who get in Sangchul’s taxi open up to him both mentally and physically. Will the woman of his dreams do the same for him when she becomes his customer?
Sex partners, who are as sweet as candy, and her teenage sweetheart, whom she reunited with as if they were fated to. Heesoo Yeon cannot give up on any of them, so she begins a risky and risque gamble between the four men.