Goku meets the first Kai on the North Kai's Planet in Other World during the Saiyan Saga. Not much is known about the Kai, except that they are minor deities and are in the lower hierarchy of gods.

But while the Supreme Kai we know is in charge of the upper realms and oversees Universe 7, ... but it’s also likely that it works just like the Supreme Kai hierarchy.

Dragon Ball is no stranger to powerful transformations.In fact, one of the most recognizable trends of the series is whenever ...

The Glind established the godly hierarchy of the Kais, which includes King Kai and the Supreme Kais. Meanwhile, the Namekians settled on planets found in Universe 7 and 6.