The Kaiō Realm (界王界, Kaiō Kai; Literally meaning "World King Realm") is the realm inhabited by the four Kaiō and their leader, the Grand Kaiō.
In Other Universes
The 10th Universe was seen to also have a Kaiō Realm.
- ↑ Daizenshū 7, page 36
- ↑ Dragon Ball Super chapter 16