A painful love story between a female idol and her boyfriend - who turned out to be suffering of incurable disease - degenerative disease ( a very cruel disease where he retains full mental capacity but may progressively lose physical control ) What's more is .. his  baby is  in her tummy.

You / Yoon Seoyul - 24 Years old, a famous female idol (i used t-ara jyeon for this character)

Jung Daehyun - 24 years old, he didn't know that he's suffering from generative disease

Kim Myungsoo/ L -24 years old, Seoyul's best friend (later he'll become Daehyun's best pal too)

Himchan - 27 years old, Daehyun's brother