Lee NaYoung, 19 (You)

A cute little red head who loves interacting with people and is very kind and so energetic that you wouldn't think that she is a patient at the hospital that Kevin so badly hates. When Kevin and NaYoung meet she immediately thinks to turn this gloomy idol into loving the place where she spends her time. She loves to and doesn't appear to like this feminine fake honey-blond but will that be her feelings forever? And just what is her illness that is keeping her bind to the hopsital?

Woo Kevin, 20

Everyone's favorite Korean American cutie. The member of U-kiss whose heart belongs to the Kiss-Me's and is shipped with Eli. He's the bubbly one who unexpectedly finds himself in the hospital with an injury. He can't wait to get out of what he calls his "hell", but when NaYoung starts to teach him what's fun will he still want to leave the sweet princess of the hospital?

Bae Yun, 18

A triple threat with big aspirations. Yun is NaYoung's closest friend who can sing, dance, and act. She's somewhat clumsy, and aims to become a famous idol one day. She met NaYoung after one of her dance practices end her up in the hospital. She's the work-a-holic who only lives for her dreams. She has no interest in love, but what happens when a certain energetic maknae comes along in her life? Will she only be focusing on her dreams, or will she now be chasing after her love?

 Dongho, 18

The evil maknae of U-kiss who loves cute things and NaYoung. He's the one fans find irresistably cute and y who will continue to melt your hearts. What happens when this laughable maknae meets the focused Yun? Will he be able to stay as the forever innocent maknae who will forever live for his noonas or will he fall in love with this sweet Melody?