Before it was released I was confused because Ahn Suho (Stephen Ahn) seems to have the traits of Park Hoomin (Ben Park) while Oh Beomseok ( Bryce Oh) is more like Seo Juntae (Eugene Gale) and I was like where are the others? Alex? Gerard? Rowan? and where the hell is the hot Donald Na?? I really thought they got the names wrong and the story will be very different from the webtoon but well, we really should watch it first and don't judge immediately. When I finished watching the 8 episodes only then I realized that it was Gray's back story all along that's why there is no Eunjang boys and Donald's army. I like how they gave the back story more depth and Stephen was a fighter. They made the trio's friendship so heartbreaking where in the webtoon Gray and Stephen do not have a deep connection with Bryce. The adaptation gave more reason and meaning for Gray's revenge. They made it so hard for him to execute it because of their friendship. I can say that it is one of the great adaptation out there. It was a fresh move to start with the back story to build up the main character because we tend to compare the adaptation and webtoon so this strategy poke my interest and I have no idea what's going to happen next (although Stephen end up with the same fate as in the webtoon). About the acting, the director didn't lie when he said that the cast is 10/10. They all pulled off their characters well and they gave more than they are expected. You definitely should watch it because it is worth it. All episodes are out so you can binge-watch it [and of course watch it on legal sites if you can:)].