Demon Contracts

**Demon Contracts** were magic covenants forged between the Demons of Sin and their human hosts. Ranging in method and effect, they gave certain benefits to both demon and contractor, allowing the contractor to have access to the demon's power in exchange for demonic possession.

## Mechanics

Demon contracts allowed the human contracting with the demon to have access to its power in exchange for demonic possession and influence under the demon. As a result, all serious injuries inflicted upon a contractor were automatically healed by the demon, making the contractor essentially immortal by conventional means. As a drawback, the demon needed the contractor to be within a close proximity to its vessel to fully utilize its healing powers, only able to prevent the soul from leaving the body if the contractor was mortally injured. Similarly, a contractor could be killed by the power of a demon, including the demon they were contracted to.

A contract could also grant a human additional powers from the demon, the abilities varying between each of the demons as well as sometimes depending on the host's compatibility with the demon in terms of personality. In some cases, additional actions were required to be taken in order to properly forge these contracts; these typically involved interacting with the demon's respective vessel, though the method varied between each Demon of Sin. However, the demons could forge contracts without the host's knowledge, though restricting them access from the full use of the demon's power. Contracts could also be forged through a demon's familiars or a third party borrowing the demon's power. Because the demons' true bodies remained in their respective vessel, they could dissolve a contract at virtually any time and abandon the host.

## Users

* Gilles Derais
* Vlad Tuberci
* Marie Annette
* Rahab Barisol
* Salem Dunbar
* Pale Noël
* Eve Moonlit
* Gumina Glassred
* Lukana Octo
* Carlos Marlon
* Mikina Freezis
* Alexiel Lucifen d'Autriche
* Mikhail Asayev
* Germaine Marlon
* Kyle Phutapie
* Yuzette Ora
* Renin Abelard
* Lemy
* Gakuga Octo
* Len Miroku
* Michelle Octo
* Elluka Marlon
* Gretel
* Nemesis Marlon

## Trivia

### Conceptualization and Origin

* Demon contracts are possibly inspired by Faustian deals with the devil, where humans are said to exchange their souls for demonic favors through these formal covenants.

### Curiosities

* According to Yvette Jacobi, the legend of the sea Allen uses, which he learned from Rin Avadonia, who in turn learned it from Carlos Marlon, is also a demon contract.
* According to Irina Clockworker, the baemu pig consumed by the Marlon household was a demon contractor.

## Appearances

* The Lunacy of Lady Glassred (first mentioned)
* Drug of Gold (mentioned only)
* Judgment of Corruption (mentioned in PV)
* Master of the Heavenly Yard (mentioned only)
* The Son of Evil: Wiegenlied of White
* The Son of Evil: Praefacio of Red
* Deadly Sins of Evil: The Lunacy of Lady Glassred
* Deadly Sins of Evil: Evil Food Eater Marlon
* Deadly Sins of Evil: Gift from the Prince who Brought Sleep
* Deadly Sins of Evil: Fifth Pierrot
* Deadly Sins of Evil: The Tailor of Enbizaka
* Deadly Sins of Evil: Judgment of Corruption
* Deadly Sins of Evil: The Muzzle of Michelle
* Deadly Sins of Evil: Master of the Heavenly Yard (mentioned only)
* Entr'acte of Evil: The Son of Evil Worldguide
* Epic of Evil: The Son of Evil Fanbook
* Waltz of Evil: The Deadly Sins of Evil Guidebook
* Twiright Prank (story) (first appearance)
* Seven Crimes and Punishments (story) (alternate timeline; mentioned only)
* Outlaw & Lychgate (mentioned only)
* E.A.T Prologue (story) (mentioned only)
* The Lunacy of Lady Glassred (manga)
* The Son of Evil (manga) (mentioned only)
* Quartets of Evil (non-canon appearance)
* The School Capriccio of the Dead (non-canon appearance)
* Evils Kingdom (mentioned only)
* Seven Crimes and Punishments (album) (mentioned only)
* Master of the Heavenly Yard (album) (mentioned only)