In order to defeat hunger, diseases, and other misfortunes on his lands and to become the ruler of the state, Lord Daigo enters into a pact with evil forces: in exchange for a peaceful and happy life, they can take away whatever they please from him. Cunning demons decide to claim the organs and body parts of Lord's newborn child, leaving almost nothing of the infant. Daigo decides to destroy the remains of his son, but the newborn is lucky. He ends up in the hands of a miraculous doctor named Dororo...