Seo Joohyun, is 24 years old girl who always change her job after being fired for a few times. She is graduate from Wu Su University, but still didn't found any job that suit with her. She love to trying something new. But always ended with failure. One day, she got letter from SMC for work with them as INTERN as a first step. So, she accept the challenge. Hospital is not all because of medical, but psychology too. And that's absolute her advance. She met new friends, a special friends and kind collagues. But, can she handle someone who cold and hot-temper person like him?

Xi Luhan, is once a dash athletes in his University. He almost become a representative of his University to participate in Olymphic Sports for a few months. But bad luck following him. He and his lover got into major accidents that cause his lower body paralyzed. He, lost his memories for a short time, the thing what he dreamed of and at the same time, he lost the one who he love so much. That's hurt him so much. He blame himself for everything. All he can thinking is.. "As if..", "If..", "It's would be better if..", but he can't turned back time. He lost his soul, life goal, everything and become a different person.

Other character is :

Choi Minho, Jung Soojung, Jung Yonghwa, Kwon Yuri and Cho Kyuhyun

and many more..