Tsugio

Tsugio is the name of a little boy who is constantly bullied and is the main character of the "Atom Cat" series. One day after being bullied, he finds a tomcat in a box (that the bullies presumed was dead) after recovering, Tsugio takes him home with him, and nurses him to health. His parents allow him to keep it, as long as he took good care of it. He names the tomcat Atom after his favorite manga superhero, Tetsuwan Atom (Astro Boy)! Later though, as he was riding his bike with Atom, he crashed into a car, which happened to be piloted by alien visitors! The aliens rebuild his bike, and "rebuild" Atom. They mistake Atom for Tetsuwan Atom, due to similar appearances. As such, Atom is reborn with the powers of Tetsuwan Atom!