The Law of Ueki: Vol. 1: Battle Commencement

The Law of Ueki: Vol. 1: Battle Commencement (2005) introduces Kousuke Ueki, a junior high student who discovers he has the power to turn trash into trees and is chosen to represent a celestial being in a competition where the winner becomes the next god. Ueki must navigate battles against other similarly gifted students while complying with a strict set of rules and maintaining his integrity.