Beings from the Abyss that were at one point human, transformed by the Will of the Abyss. They must sign a contract with a human contractor in order to leave the Abyss. Chains involved in illegal contracts must repeatedly consume humans in order to gain power.
An agreement between a chain and a contractor. The chain is bound within the contractor and can be called out at will. In return, the contractor provides passage for the chain out of the Abyss. Legal contracts, that were made possible by Pandora, granted the ability never to age to the Contractor. In illegal contracts, a clock-like seal appears somewhere on the Contractor's body, over their heart. Each time the chain's powers are drawn, the hand in the seal moves like on a clock. Once the hand makes one full rotation, both the contractor and the chain are dragged into the deepest level of the Abyss. There is a legal way to do the contract where as the Contractor won't be dragged to the Abyss, but this method is only known by PANDORA
A human who makes a contract with a chain. There are certain procedures to making a contract, but impromptu contracts can also be made, although they are illegal.
The world that chains come from. It exists in a different dimension as the world, and as thus, time doesn't truly exist in the Abyss. A person can find themselves in any random time period upon exiting the Abyss. According to Break, the Abyss can appear as a prison or a broken toy box, depending on the person.
Intention of the Abyss (アヴィスの意志, Abisu no Ishi?)
The existence that governs the Abyss. Usually appears in the form of a bloodied rabbit doll with big round eyes. The real form of the Intention of the Abyss is Alice with white hair, dressed similarly in white. Apparently the Intention of the Abyss wants Oz and Alice to go back in the Abyss, and is somehow connected to Alice. The Intention of Abyss was born in the Abyss at the same time that Alice was born in the human world. The Will of Abyss hates Alice and want to destroy her. It is revealed her real name is also Alice.
An organization founded by the four dukedoms. It specializes in research regarding the Abyss.
Doors are gates to the Abyss that the four dukedoms control. Each dukedom has control over one, with The Seven Sins holding the last, fifth Door.
Blood Sealing Mirrors
An item used to make a legal contract. Instead of the contractor drinking the blood of the chain, the blood gets absorbed into the mirror where a seal is formed, keeping the seal off of the person. If the mirror is broken, you can lose the contract to the chain. It also has a limit on the power you can use. (The legal way to do the contract)
Hope this helps
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