Okay so this drama was not what I had expected, thought they would have a continuation from the 1st one, but sadly this went in a whole different direction then expected.

The storyline was for me to the point, it kind of flowed through and was the pacing was just right, they needed to find out what happened to everyone, and so they just went ahead and got on with it, there was no drag and think and contemplate of what to do next, or how to do it.

The characters were sort of well matched, I was surprised to learn of Kim being a mono as well, I honestly thought it was only his sister, so that kind of made more interested to see where they go too, the acting of Yoo-jun (playing Choi Yeon-woo) remains as one of the solid points of both seasons. In the first season he deals with the fact that he is a mono, his mother is also a mono but is missing, and he finds new friends and also finds Yoo-han who is also his probe. He experiences the rush of being able to see colors and also the disappointment of losing that ability after the decoloring effect begins. In season 2, he goes from the uncertainty of his mother still being missing, to the dread of witnessing Yoo-han's kidnapping, to the potential of uncovering all the illegal activities the Gray Scale/Woksun/Nerve Candy people (led by a mono that goes by the nickname of "Monowife"), to dealing with his new feelings towards Kim Se-hyun, to finally finding out his mother did die but being rather calm about it.

The music was not so bad, although it was only the one main song.

Overall: This did end with a cliff hanger and the so it begs the question of a Season 3 Coming, if that is so I really hope they get the right production, and screw up the story between the 3 guys?

Basically watch it if you enjoyed the first season, but do not have high expectations on this season.