This is such a fantastic show, an absolute masterpiece! The acting, the production, the plot - everything is just insane! Beware if you are too sensitive, this show has lots of heartbreaking and brutal scenes, at times it gets VERY intense and overwhelming. It's like The Hunger Games but ten times worse, very psychologically pressuring and cruel. Best Japanese show I've watched EVER.
All actors did a great job. I cried, laughed and screamed with them. The production is top quality, too. I'm going to read the manga from the point where the show has ended, because the thirst for the answers is just unbearable. Can't wait for S2!