I love dramas with "magic/supernatural" plot pieces so this drama was right up my alley!

Pros:
The idea
The leads (until the last 12ish episodes.)
The OST

Cons:
The writing starting around episode 20. It was just a back and forth of "no I'm going to die for you." "No! I'm going to die for YOU!!" Back and forth.
Also when the villain escapes...a least favorite trope is when a villain gets lose after getting caught.
Couldn't stand the 3rd wheel. Never felt he loved the lead but just had a weird obsession caused by his own back story.
So confused by the whole feather handkerchief...turns black at one point and then he isn't human? I don't know, I might have missed something...

Glad it is over...