JI CHANG WOOK

Changwook is his nickname. He's the new owner of the Enrertainment Agency which named Dayrock Entertainment. He's innocent son but someday his father doesn't believed him by thinking that Changwook wants to kills him so he can owning the Dayrock Entertaniment. Changwook's never fallin' into someone until he meets Yoona in a unpredictable way.

IM YOONA

Yoona is her nickname, She's a kindhearted girl but has unreadable pain inside her heart because of her boyfriend deaths, she also has a little traumatic of seeing car accident. She can greatly covers her sadness with her sweet smile to everyone but there's a person which was she just met but can easily knows her sadness.Yoona tries to escapes from that person but she think that's useless.