Over the years since, versions of this map have appeared in various other guidebooks, including Daizenshuu 7, Dragon Ball Landmark, Super Exciting Guide: Character Volume, and Chōzenshū 1. He later revised the map for its inclusion in Daizenshuu 4, adding in the Kaiōshin Realm. Toriyama first drew this map as a reference for the animation staff, and in fact his design of the macrocosm can be seen a bit during the Afterlife Tournament filler arc of the Dragon Ball Z TV series. “Super Exciting Guide: Character Volume” (p. The big ball in the center is the world known as “this world” and “the afterlife”, and the one who watches over it from outside is Kaiōshin.
I think it’s something I came up with so both I and the readers would be able to easily grasp it. In his Super Exciting Guide: Character Volume interview, Akira Toriyama explained that he designed the world in this way to make it easy for both himself and his readers to understand.