[Mesnick]

I see a lot of people get pissed off by the child soldiers, but they are clearly inspired by the Shonen Warriors from the original Black. Plus, war has always attracted young people.
Also, we were shown throughout the film that Kotaro Minami of this show is a weak and weak-willed person. Therefore, it is only logical that he was unable to maintain free will as the King of Creation. This possibility was mentioned as a weak ray of hope.