The Incident

On the way home from school, Err Grey sees a boy walking into the middle of the street for a ball, while a truck is coming. Without even thinking, Err runs and grabs the boy, and in doing so startles the driver. The driver tries to hit the brakes and turns the wheel, but causes the truck to spin out of control. Err jumps out of the way in time with the boy, but ends up hitting his head when landing, causing him to pass out. The truck explodes and spews out a liquid, that quickly turns into a gas, spreading throughout the city. This gas infected several people and made them develop powers, creating the Preter-Humans.