As is the case with much of Tezuka’s work, the main plot of Nextworld deals with Earth in the Atomic Age. Radiation and nuclear testing has led to the creation of many strange, almost supernatural species of animals, and it seems that every major nation on the planet wants to discover the secrets of these creatures and how to best harness atomic energy for their own purposes. Tensions rise as political conflicts escalate, and it seems that a third World War is inevitable. A strange mix of scientists, politicians, and young adventurers may be Earth’s last, best hope against corrupt government officials, armed forces, robots, and secret societies. Meanwhile, the boy detective Kenichi, the young Rock Holmes, Shunsaku Ban (Mustachio) and others discover the Fumoon, a race of tiny, telekinetic humanoids who evolved in Australia, and have their own plans for dealing with the impending apocalypse.
Dororo, a young orphan thief, falls into the company of Hyakkimaru, a powerful demon-hunting Rounin. Before Hyakkimaru's birth his father, a greedy feudal lord, made a pact with 40 demons and let them each take a piece of his unborn son's body, in return for granting him great power. Hyakkimaru was born without arms, legs, eyes, ears a nose or mouth, a barely human creature, and his father had him thrown in the river. He was rescued and raised by Dr. Honma, who made him artificial limbs and helped him learn to fight the demons - each time he defeats one he reclaims one piece of his body. Now he and Dororo travel together through the war-torn countryside
The famous character created by Osamu Tezuka, returns in a new three-volume manga inspired a recent television series. A robot designed in the image of a child finds himself forced to fight to protect his fellow human beings.