The Ato segment was interesting. Depressing, but also interesting. The older brother must have felt like the whole world betrayed him by the end. The little brother seems to have eventually become twisted. I don't blame him for torturing his brother's bullies, but to go after his mentor like that means.... well, I suppose it's as Nietzsche once said about the dangers of fighting monsters.
At any rate, I do like the fight theory the Ato kid developed for himself, little by little.
"Bicycles are pretty strong."