Ending was very disappointing

The story had potential, but the jumps from past to present and vice versa made it hard to understand. Also that ending annoyed tf out of me even though it was kind of predictable? In the end he turned into what he was hunting, what a shame.

The bromance is line the cherry on top!

Im still on ep 15 so not finished yet, but im already sad that it will be over in just one episode?
this is def one of my fav thrillers out there!
besides of the pretty good storyline, the actors are perfect!!! The storyline is great, but the acting cannot be beaten??
so please give this a try!!

This is by far one of my favourites!

This is one of the K-Dramas I wish I could watch for the first time again. It was sooo good and caused so many emotions ?? I felt happy, excited, angry, confused, BROKEN ...
to be honest, I dropped this after the second episode since it was a little slow, but AFTER I decided to watch it again, everything changed.
So dont give up after the first episode please, you will understand everything (slowly)?
And if you finished this one, go watch vagabond and beyong evil next ?