Na-moo, heartbroken after breaking up with her girlfriend, accidentally sees a post selling sex robots on the internet and purchases one that can love him unconditionally. He gradually falls in love with her sex bot, 'Fairy', and when his friend Seok-jin finds out about it, he visits his house and asks him to share his robot. But when Na-moo rejected his friend's request, Seok-jin secretly stole the operating command of the sex robot and had sex with 'Fairy'.