Fierce battle competition, comedy, and an epic coming-of-age story--somehow Kosuke Ueki manages to remain true to himself through it all.
A group of powerful beings called tenkaijin are holding a special tournament. The rules of the game--each tenkaijin selects a kid in junior high to be his champion and grants him a special power. The kids take each other on in heated battle, but if they hurt innocent bystanders, then they lose one of their natural-given abilities. Every time they win a battle, they gain a new ability. The ultimate winner of the tournament is granted any power of his choosing, and the tenkajin who he represents succeeds in becoming the next god. Kosuke Ueki has been chosen to fight in the tournament. His special power--the ability to turn garbage into trees.
Ueki encounters nasty Robert Haydn, a contestant whose very name strikes fear into the hearts of the most seasoned champions. Ueki has been warned to avoid this nutcase at any cost, but his sense of justice won't let him stay away. Will the power of trees stand up to the preeminent favorite of the tournament?