Timespace Junction

The Timespace Junction is a mysterious land used by the Seven Disasters as their hideout.

Background
The Timespace Junction is a particular point on space connecting every single world within the space and time. On this area, the rules of the world doesn't apply and the space-time fabric can be easily distorted, causing summoning spells to have a way highter sucess rate and making possible to someone create a dimension using their own memories.