|The title of this article is conjectural.|
Although this article is based on canonical information, the actual name of this subject is pure conjecture.
"Desert World" is the world that Kouki Amanogawa was summoned to on his solo adventure while he was in Tortus not too long before the one year anniversary the returnees went back to Earth. The Goddess Foltina, the avatar of the Blessing Tree, summoned Kouki to save its inhabitants from the Dark Beings.
- As the name of the world was coined by Hajime due to its current desert covered state, the inhabitants objected to its naming and petitioned to announce a new name for the world. Koone World was the name decided by them in honor of their current Queen Koone.