Yuna moves to Korea with her father for business. Left alone to herself, she decides to go to open auditions for TS Entertainment. Her father is against her involvement in show business and kicks her out of the house. Yuna soon meets friends who are determined to help her make it no matter how hard the climb.    

Yuri's father owns a company that supplies bodyguards for idols and celebrities. What happens when she's charged with being the undercover bodyguard of six certain men? What's more- she has to pretend to be the girlfriend of one of them in order to catch the crazy sasaeng that has been tormenting them. She has just one rule: don't fall in love with me, okay?