I really love this series. Gun's acting was remarkable. I have a couple of complaints though.
First, Gram annoyed the hell out of me, like I get Black didn't treat Gene that great but come on dude, he's supposedly your friend. Idk, that just annoyed me.
Second, there's unanswered questions. Like when White was acting as Black, their dad didn't question where he went? Black fought those officers at the hospital but received no punishment, or he never got caught? Lastly, they all had classes but hardly attended?
Honestly, I would like a second season to see what everyone done after the last mission, like what was Black going to do? Also, would have loved more interactions with Dan and Yok. (I love FirstKhao but I still wanted moren?)
Overall, even with my complaints it's a great series, I would rewatch it!