Little Sung Joon was a chubby kid with no friends, but he befriended Hyejin who was popular and pretty. Sung Joon who had to go to the US, promised to meet Hye Jin 15 years later. When they grew up, Sung Joon (Park Seo Joon) became a perfect handsome man, while Hye Jin (Hwang Jung Eum) was not as pretty as she was when she was a child. Feeling insecure, she asked Hari (Go Joon Hee) to pretend to be her when she met Sung Joon. But fate had other plans, Hyejin who finally got an internship at a fashion magazine, ended up meeting Sung Joon who became an editor there.