so I've rewatched this a couple times already awhile ago and only got a chance to write my review now. this drama has:
bromance, romance, action, magic (some great CGI), great cinematography, decent acting, a well written plot, friendship, tears
then I guess you can watch this (jk its rlly good & rewatch worthy)

what I liked about this drama was:
- ml is evil but the type of evil where I can destroy this world bc someone hurt you
- bromance & friendship
- grey characters
- stuck w/ the beginning of the plot even with side plot
- great acting from the ml's side
- the little bits of side stories as they captured evil spirits were rlly good & cool

dislikes:
- fl was quite annoying at times for her character bc she pitied herself quite a bit (im more into strong female characters so I cant stand it, but you might be able to)
- most of the time was waiting to be saved (but then again she was fighting w/ supernaturals so like...)
- the other ml's voice was irritating to me sometimes for his high pitch but other times it was funny too
- miscommunication (it got annoying bc the fl just kept GUESSING THINGSJGJDLGJ but I guess it adds to the plot)

characters were rlly diverse & this whole drama was just refreshing bc it was rlly different.

if you want a fantasy drama with an evil male lead that also has bromance than be my guest.
I rewatch this from time to time for that one scene.