Loved this series. This was unexpected as I stumbled across it on YT. It's also on Viki.
All the cast played their part well. The action flowed; the dynamic between each person was showcased well with the bad guys being just as much intricate as the good guys. The overall plot wasn't complicated. I love high school series and the ML was excellent in that his characteristics were basically robotic, emotionless pretty much, but you still got to see what was ticking on inside his head. You see the changes in his personality as he starts to develop empathy towards the people now closest to him. A bromance of sorts which I love this dynamic.
I'm anticipating S2 to be out (hopefully) this year.