Check out the most recent manga Atom - The Beginning at CoffeeManga. Manga Atom - The Beginning is constantly updated at CoffeeManga. Don't neglect to review the various other manga updates. A list of manga collections CoffeeManga is in the Manga Checklist menu.
Tells the story of what happened up until the birth of Astro Boy. Essentially an "episode 0" for Tetsuwan Atom.