Characters
. IU (Lee Ji Eun) as Min Soo Yun (ok here's the thing, i'm too lazy to change all the names but actually this name is pronounced as SOO YEON, not SOO YUN...)
. Do Kyung Soo (D.O.) as himself
. Byun Baekhyun as himself
. Kim Jong In (Kai) as himself
Other characters will be later introduced in the story.