Heart of the Multiverse

The Heart of the Multiverse is a relatively major location within ''Highschool DxD: Blazing Dusk & Midnight Dawn. ''It is home to the three Primordial Ones: Azrael (Lord of Balance), Satanael (Lord of Order), and Kaira (Lady of Chaos).

Summary
The Heart of the Multiverse, known as the Heart for short, is exactly what the name implies: the center of the multiverse. Think of each universe as a star in a galaxy. Every universe contains a set of timelines, equivalent to planets in a solar system. The Heart is the black hole at the center of that galaxy, keeping everything together.

Appearance
The appearance of the Heart itself changes often, but one thing stays the same: it takes the shape of a floating island surrounded by a sphere of swirling purple and grey light. Built on the island is some kind of residential building. It can be anything from a normal suburban house to a giant castle. The scenery outside the dome changes as well. Sometimes it's outer space, sometimes in the sky, sometimes beneath the sea. The true location of the Heart is unknown, but some believe that it's at the center of the Dimensional Gap. It's also rumored that the Heart is the shared Mindscape of the Primordial Lords that call it home.

Residents

 * Azrael, Lord of Balance: Azrael, who was formerly hosted by Zach, is the one in charge of preserving the Heart.
 * Satanael, Lord of Order: Satanael, formerly hosted by Michael Eon, is in charge of choosing what form the Heart takes.
 * Kaira, Lady of Chaos: Kaira used to help choose the Heart's appearance, but is now little more than a prisoner, considering everything she's done.
 * Zach Praktum (formerly): Zach lived here for a while, during his time trying to keep the multiverse from deteriorating.