Kami (Kami Sama) is the guardian residing over the Earth for much of the series. He is the good half of an unnamed Namekian (which is called child of Katatz by Namekian Elder (Guru)) that had to split himself in order to become guardian. The evil half, Piccolo Daimao, was later sealed away by humans. After Piccolo Daimao is unleashed and killed by Goku, he spawns a much stronger reincarnation, Piccolo. Seeing a threat, Kami decides to attempt to seal away the new Piccolo in the World Martial Arts Tournament, possessing a human named Shen (dubbed Hero in the English anime) as a guise, but the plan backfires on him. After Goku defeats Piccolo, he eventually reforms, and much later during the Cell saga, Kami agrees to merge and rejoin Piccolo to stand a chance against Cell and the Androids.