The Law of Ueki

The Law of Ueki is an Japanese animation series which is aired on TV Tokyo. The series premiered on April 4, 2005.

It's time for a new God to be decided - candidates from the celestial world must each choose a high school student, give their student a unique power, and have them fight it out. While many want the prize powers for selfish and destructive reasons, Mr K and his student Ueki decide to fight simply to keep the world safe.