Believe it's really good.
From the beginning of the first episode till the last second of the last episode is truly amazing.
Even though it's really overrated and in Korea the rating wasn't good but the people who have watched would tell you that ' it's worthy '.
The story is fully refreshing and new, it's not the same supernatural drama story but truly great , it is full of mystery , and unexpected.
The cast was really good , every cast is perfect in their roles. The OSTs are perfect and heart touching.
-- Overall it's one of the best drama of the year and from beginning to the end, you won't get bored and the hour will be feel like minutes !????