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.

Plot
After sucessfully stealing the research data from the Black Magic Hall, Lilia and Valenty discovers about a unique point on space that would allow them to summon any being they desire. After some research, the two are able to install themselves, along with Eastin and Mono, in the area. Lilia then proposes to invite the Seven Deadly Sins in order to know more about their weaknesses and use them to summon a being capable to explore them. While Valenty, Eastin and Mono, install themselves on their own realms projected on by their memories, Lilia stay behind to deal with the Sins on her Awakened form.

The area remained being used by the group as their home and training camp even after Roxy, Shin and Camila's arrival.