The Kaiō referred to as Lords of Worlds in Viz's English manga and the Kai in the English anime dub, are upper-level gods of the Dragon Ball multiverse. There are five at a time; one presiding over each of the four quadrants of the universe and the last, the Dai Kaiō , overseeing them all. The Kai reside in the heavens and are responsible for the lower-level deities who rule over individual planets. Later in the series, it is revealed that Supreme Kai exists, who are in charge of the Kai.It is possible for an individual Kai to be promoted to the rank of the Supreme Kai after a period of training as an apprentice; for example, Zamasu was the former North Kaiō (北の界王, Kita no Kaiō) of Universe 10 prior to being chosen by the ruling Supreme Kai of Universe 10 as his apprentice and eventual successor.