Kyuhyun Cho as himself.

The maknae of fabulous boy band Super Junior, the evil and blunt one. Acting innocent and cute most time, but he's mature enough on his age. Being ert but only to particular girl, of course. 

Adelynn Lee (OC)

Tiffany Hwas as appearance of Adelynn Lee over the imaginary that Adelynn has a pair of blue eyes. Lynn, the nick name of Adelynn, is an Korean-England girl who lives in Korean due to her work as scientist on particular pharmacy company in Seoul, South Korea. Her blue eyes is a gift. She inherit those beautiful eyes from her mother and her grandfather of father's side. She has pretty face and warm personality; what's dreamed by any girls. But, none is perfect. She's a lonely after the lost of her mother at young age leaving her on traumatic state.