You were once the happiest girl on earth. But, what happens when he suddenly left without even saying goodbye? What happens when you meet this guy who will turn you back to the smiling princess you once were? 

Starring: 

You & Exo-M's Luhan 

Also Starring: 

EXO [Xiumin, Kris, Suho, Lay, Baekhyun, Chen, Chanyeol, D.O., Tao, Kai, Sehun]

Kim Hyoyeon & Lee Hyukjae - as your parents 

Lee Donghae - your older brother

Jung Jessica - your sister-in-law

Lee Sunhee - your niece 

Lira, Sunmi, Eunmi, Subin, Gyumi, Haebin - your friends/ EXO's girlfriends[well, for some lol :p]