Everybody wondered why a handsome, clever, rich, and popular boy like Jang Wooyoung couldn't get a girlfriend. No one knew. Behind his strong appearance, there was a big scar that could't allow him to give a space for a girl in his heart. No one knew, except Lee Jieun, an ordinary girl that had a lot of extraordinary things.

Starting her carreer in the early age made Seo Hyun has no experience in dating. Until one day, she involved in WGM and got Yong Hwa as her partner. Their love started to develop and Seo Hyun started to change. The only problem was, should they keep dating secretly for the rest of their life? Since dating was prohibited when they decided to be an idol.