I will answer to my self, : It is a great drama, great story , great actors and actresses , the ending is not sad at all , but it leaves you with the feeling that something is missing . It is a long drama with a super fast and incomplete ending .
This drama is only worth because of JOO WON . This drama is the proof that JOO WON is a Great Actor ,as you can see him developing a love story with the lead actress Choi Kang Hee , which I think doesn't match with him at all.
Nice drama, give it a try. The synopsis right now is not totally right,it was copied from the synopsis in good drama. I submited some changes in it I hope they come out soon