(You) Zhang Ye Jin is an heiress living a double life. Tired of being in the limelight, she runs away from home and becomes EXO-M's all-around assistant where she meets Zhang Yixing (Lay), the career-obssessed and handsome EXO-M member.    She's the perfect daughter by day and the badass party chick by night. Zhang Ye Jin gets tired of the "flawless life" and voluntarily runs away from her mansion to prove that she's not just the stereotypical spoiled kid who likes to party. A