Jessica is a daughter of a Boss in International Hospital Seoul

She being happy with KyuHyun (Her Boyfriend)

KyuHyun is a handsome, cool, and perfect boy to being a Doctor.

They're always been together,, But ..

"Sica, so sorry.. I Can't live without you. Don't be mad please"

"But Kyu, I got tired of our love. You are always like this. I hate you"

KyuHyun running for catch Jessica. Then he run, a Truck hit him.

KyuHyun family is so sad and cryin a lot. Jessica so sad, she is depression

A Few Month Later ...

"Sica, Do you know? Now Kyuhyun's heart is Donghae's" Sica's dad saying

"M-Mwo?

"Yes, He is donate his heart for DongHae. And from now, Kyuhyun's heart is Donghae's"

Until she meet Donghae, she like him. His smile is like Kyuhyun's smile.