>>115302985I've only read a few chapters and it's been a while, but in the manga the dad is an even bigger asshole. After happily raising Astro for a few years, he starts getting antsy that he isn't growing any. It finally hits home that he's not a perfect copy of his son, so he sells Astro to the circus. After this Astro isn't allowed to wear clothes cause he's not human...
Eventually a nice scientist rescues him and starts raising him as his own son, Astro goes to school and makes friends like a regular kid while also using his powers to help out. He also cries sometimes about not having a mom.
