Starring:

Kim Yoojung

She's a girl that never loses her passion and dream.Her beautiful smile,cheerful personality always brightens up people's day.She is happy when she knows that Jingoo likes her back like she does,and she is willing to wait for ten years until the day they can be together.

Yeo Jingoo

He's a boy that always faces his problems with his branded wide smile.He never gives up on anything he wants or he likes.So he swears that his heart never changes for Yoojung.He is a very considerate boy and always cares for Yoojung.

Ha Yeonsoo

A female actress that once co-operated with Jingoo in a drama.She slowly falls for Jingoo as she slowly knows this boy who is younger than her.Although she likes him,but she never wants to separate Jingoo and Yoojung.

Park Geontae

A very sweet and caring male actor who is really in fond of Yoojung.Thinks that Yoojung is very cute and wishes her to be his girlfriend.He is very jealous when he knows that Yoojung likes Jingoo.