Me too, Fower! The first half was cool. The second half absolutely sucked. Two of the secondary female leads were a complete mess and super annoying, and the main lead was difficult to relate to.
Moon Lovers: Scarlet Heart Ryeo (dropped it after a couple of episodes cause I found it boring)
The Mentalist (I'm skeptical about this as I've seen the US Series and it was awfully illogical and overdramatic after the first season, the remake could be better though)