I started watching this drama with no expectations but after a few episodes i really had a good feeling about it, this drama was really something.

The story was interesting and it was exciting to watch. It always happened something in each episode that made you want to watch more of it, until the last few eps where it all went down. The ending really disappointed me, maybe it was because i really liked the two brothers and i wanted to see their relationship develop more.
Some things were too excessive, like Yeons love for Ji Ah. I understand his actions but some of the things he did was too much. He did everything for Ji Ah and I didn't feel like she "returned" his love. The couple lacked chemistry and therefore I was rooting for Yeon's relationship with his brother instead.

The acting in general was good, I love Lee Dong Wook and he was the reason I watched this drama. The only thing I disliked about the cast was Ji Ah because her character was annoying and too much for me.

I dont think it's worth rewatching but if you want to watch a fantasy romance drama with a good story and acting this is definitely worth your time. Even though the ending is bad, the other things make up for it.