Lol I think my slump is making me rate things higher xD
So the good:
Byun Yo Han as a 1st ML
Byun Yo Han with long hair and a beard
Byun Yo Han action scenes
Byun Yo Han and Won Jin Ah as a married couple
The story and development did keep me engaged

The bad:
Short yet long
The last fighting scene got too comical
I actually wished for more undercover activities
It was kinda like squid game cop guy's pov, not much depth and too much "action"
Like I wished for the MLs to form a bond so the betrayal got deeper
I did not hate BYH not turning evil to be undercover but I also would've liked a bit more, it all felt like it happened in 2 days