Quadratum

'''This page contains an explanation which differs from sources like https://www.khwiki.com/. The KH Wiki lists "Quadratum" as the world itself, and also says Quadratum and Shibuya are the same, however, Nomura himself has stated that Sora is in Shibuya, and Riku is in another area entirely. So this page is piecing together details based off of the words of Nomura himself. Further changes, and possibly a fusion of the two pages, will be made if it is proven that Quadratum and Shibuya are one in the same.'''

Quadratum is a metropolitan city located within the world currently known as the "World of Unreality". It is filled with large buildings and roads, and houses many civilians. The metropolis borders Shibuya. Not much is known about this place so far. It appears in both Verum Rex, and the secret ending of Kingdom Hearts III.

Settings and Areas
Not much has been shown of Quadratum yet, aside from a building strongly resembling that of Insomnia's Castle.

Kingdom Hearts III
Riku arrives in this city within his dreams, "Yozora" can be seen sitting on top of the large castle-like building.

Kingdom Hearts Melody of Memory
Riku and Kairi meet up with the Nameless Star in the final world, allowing Riku to travel to Quadratum.

Verum Rex
This part is under construction.

Denizens

 * Yozora
 * Magia
 * Aegis
 * "Yozora"
 * Nameless Star (possibly)
 * Riku

Enemies

 * Gigas

Etymology and Design
"Quadratum" is the Latin word for Square, possibly a reference to Square Enix, or how it has big square-shaped buildings. It could potentially also be a reference to "Four", to reference the four main characters of the game.

Quadratum itself is based off of both the real-life Shinjuku Business District of Japan and the Kingdom of Insomnia from Final Fantasy Versus XIII.