is a Japanese manga series written and illustrated by . It was adapted into a 26-episode anime television series called which was broadcast on TV Tokyo from October 5, 1999, to March 28, 2000. In some markets, the series is known as Bucky: The Incredible Kid, Bucky: Searching for World 0 or simply Bucky.
The Parallel Planet is a realm situated "above the sky and down the sea". This world is geometrically divided into twelve distinct lands, arranged in the manner of a clock face. At its center stands the Needle Tower, also known as World Zero, a place where time remains static. Each of the twelve surrounding worlds is protected by a guardian known as a Great Child, who is always accompanied by a spiritâÂÂan explosive, spherical companion that aids in defeating creatures called Troublemonsters.
The story follows Baku, an ambitious boy whose goal is world domination. His journey begins when En, the Great Child of World One, entrusts him with his Spirit and a G.C. Watch, propelling Baku on an adventure across the twelve worlds to fulfill his dream at any cost.
In the International versions of the anime (Brazil and Spanish-speaking Latin America), the Enoki Films licensing, and other dubbed versions of the anime, their Japanese names are changed, while others retain their original name.