Black Ring

**Black Ring**BR-001BR-002BR-004

A Black Ring is an area that causes widespread, severe mental contamination. It appears when a Mania crisis goes beyond its limits and is the ultimate form of a Mania catastrophe.

## Black Ring's Ramifications

Black Rings cause Mania to spread widely and unpredictably, turning into Corruptors any human beings near or inside them. It's extremely dangerous to get trapped inside a Black Ring, because Mania contamination inside is highly concentrated and can turn a human being into a Corruptor almost instantly.

## Black Ring's Behaviors

A dense, extensive area of mental contamination can induce reality warping within its confines. Most Black Rings cause space-time distortion, antigravity, and electromagnetic interference, and some Black Rings have their own special characteristics. Matter and energy undergo preternatural transformations within a Black Ring, as if some kind of unearthly energy is pouring out of another dimension to encroach on and fuse with the physical world.

## Ground Zero

The appearance of a secondary Black Ring—that is, any Black Ring that comes after the BR-000, is accompanied by a powerful Sinner going manic. The Sinner is said to be Ground Zero for that particular Black Ring, and seems capable of controlling it.

Correction: The awakening of a Corpus results in the appearance of a Black Ring.
 So far, there are two known conditions for the awakening of a Corpus.
 1. A Corpus invades and fuses with an S-Class Sinner.
 2. Maniacs seized by the same type of emotion gather in large numbers.
 In general, the appearance of a Black Ring requires an excessively high concentration of Mania, and the higher the concentration, the more powerful the upcoming Black Ring will be.
 If a Black Ring is left unchecked, it will grow more powerful over time.

## Corpseborne

A Corpus is a substance or creature infused with an excessive amount of Mania. There are many Corpora in DisCity, and they are believed to have human-like emotions and consciousness even while lying dormant.
 When a Corpus awakens, its emotions and consciousness grow stronger. A Sinner that has fused with an awakened Corpus is called a Corpseborne, which will become the center of Mania contamination.
 The appearance of a secondary Black Ring is tied up with the birth of a Corpseborne, and the in-depth inquiry into the cause of the Square Black Ring has confirmed that Corpsebornes are the source of Black Rings. When a Black Ring appears, it distorts the laws of physics in its surroundings and contaminates the minds of those in its vicinity, and all the Corruptors within the Black Ring are subject to mental interference from the Corpseborne.
 According to the information gathered by Parma and his lackeys, a Corpseborne can control the Black Ring he or she has created. That's why he refers to a Corpseborne as *Ring Master*, or simply *Master*.

## Known Black Rings

BR-000 - The BR-000, also known as the Primary Black Ring, appeared in N.F. 84  , arising out of the DisSea Explosion. The Black Ring covered the entire DisSea, leading to the direct death of 87231 people and the emergence of a large number of Corruptors.

BR-001 - A secondary Black Ring that appeared around the Grace River in N.F. 89  . It's first suspected that it resulted from S-008, an S-Class Sinner, running out of control, and it's later confirmed that it was caused by the awakening of Corpus 001. The FAC contained it, and 23 years after that, the MBCC Chief eradicated it.

BR-004 - A secondary Black Ring that appeared in Keylan Square of Syndicate in N.F. 112. It was born out of S-028, an S-Class Sinner, being invaded by a Corpus, and was eliminated by the MBCC Chief within the day.