The first half is the most perfect drama I've ever seen. The acting, chemistry, directing, EVERYTHING 10/10. However, the 2nd half goes down this weird path where everything just confuses you and the characters choices just put you off. The ending was really corny. I would recommend just watching the first 12 episodes and leaving it off there. Though beautiful, they used the intro track a little too liberally but the soundtrack was pretty amazing. I don't usually listen to soundtracks but I find myself going back to this one all the time. The acting was stellar from the leads and just meh from the supports.