Rahab Barisol

The Demon of Envy was one of the demons residing in the vessels of sin. Taking two swords as its vessel, the demon caused numerous incidents over the centuries. After its vessel was acquired by Kayo Sudou, the Demon possessed the tailor and caused her to enact a string of murders.

History
After the death of Eve Moonlit in EC 014, her children, Hänsel and Gretel, split her Original Sin into seven fragments, each with its own demon. Afterwards, the demons and their vessels of sin were scattered across the world. The Demon of Envy eventually inhabited a Twin Swords of Levianta as its vessel. Sometime during the EC 300s, the Levin Church gained ownership of the swords and stored them in Lucifenia.

New Four Horsemen
In EC 508, the mage Abyss I.R. gained ownership and the Demon of Envy possessed Mikhail Asayev while the mage collaborated with him. Afterward, the envious Mikhail formed Neo Apocalypse with other radical hardliners from the Meta sect and launched numerous terrorist attacks across Divine Levianta in opposition of the Levin Church. Following the incident, the Demon of Envy left Mikhail and returned to her vessel; around that time, Chartette Langley gained ownership of the swords. Unable to influence the carefree woman, the demon's vessel was reforged in Jakoku as two pairs of scissors. In EC 549, Chartette passed the two scissors to a Jakokuese warrior.

Enbizaka Murders
Sometime during the EC 800s, Kagura Sudou gained possession of the scissors. At some point, she passed them down to her daughter Kayo. In EC 842, the Demon of Envy possessed Kayo. Perceiving a stranger to be her deceased husband, the tailor began envying the "mistresses" of her perceived husband and murdered all three women before approaching the man wearing the articles of clothing she stole from her victims. Shocked and hurt by his treating her like a stranger, the tailor killed her perceived husband shortly after. Once Kayo was captured and beheaded by the vessel of Wrath, the Demon of Envy returned to her vessel.

Defying the End
After witnessing Allen, Clarith and Lemy Abelard defeat the Sleep Princess, the Demon of Envy appeared in her human form and began clapping. Noticing the Demon held two pairs of scissors in her hands, the former chamberlain asked if it was the Demon of Envy. The Demon then replied that she thought it was her turn but arrived too early, although grateful to have seen something amusing. When Allen asked if she meant him being pathetic, the Demon confirmed it. The Demon also explained that Jakoku was far and questioned if he could bear crossing the sea, laughing.

In reply, Allen asked if it wasn't able to fly, to which the Demon replied that she could swim very fast and that they shouldn't waste time. After seeing Clarith and Allen say their goodbyes, the Netsuma thanked the Demon, calling her a crab. Insulted, the Demon asked her if she looked like a crab. Clarith then expressed her surprise at the fact, stating that she thought the Demon had a crab form due to her shell. Deciding to forgive her, the Demon told Allen that they should leave and instructed him to ride on her back.

After transforming into a fish, Allen told the Demon her back fin made it difficult to ride. After telling the boy to be patient, the Demon spread its fins like wings and flew into the air. Landing in the ocean, the Demon of Envy began swimming to Jakoku. The Demon then heard Allen say that swimming was faster than flying and probably faster than having Josephine journey across the continent, to which the Demon did not reply. Some time after, the Demon noticed they had already arrived at Jakoku and remarked that they were unusually early.

The Demon then explained that according to her calculations, it should have taken them a little longer to arrive at the island nation before saying that, due to the Third Period's connection the Hellish Yard, space and time had began to distort. After Allen expressed his surprise, the Demon guessed that the space-time anomalies were caused by the "professor" trying to hurry things; in response to Allen's confusion, she clarified that she referred to the Sun God.

Once they arrived in the island of Onigashima, the Demon of Envy noted the tall slope where Kayo's house was situated, saying that she was likely to break a bone climbing up there and that walking was awful. Leaning against the bridge in her human form, the Demon witnessed Allen begin climbing up the slope.

Personality and Traits
At the time of taking its role as one of the demons for the vessels of sin, the Demon of Envy existed as a blank slate, having no aspirations or goals save for sating her own boredom, the same as her fellow demons. Like the other Demons of Sin, the Demon found amusement in the inconveniences of others. The Demon was also not fond of conversation, remaining uninvolved in discussions unless she saw it necessary to speak. Additionally, the Demon of Envy did not consider the feelings of others when speaking. Similarly, the Demon only considered herself, although she was willing to work with the sun god if required. The Demon was also easily irritated by people misidentifying her, although she would sometimes forgive them. When faced with a difficult or possibly dangerous task, the Demon often opted not to do it.

Skills and Abilities
As a Demon of Sin, the Demon of Envy was able to possess those who wielded its vessel. While possessing a host, the Demon of Envy was able to influence their personality and actions, fueling their owner's jealousy and turning it into envy. If a contract was forged between an individual and the Demon, the Demon's host would have access to powers provided by the Demon. The Demon could also communicate with their host through telepathy.

The Demon was also capable of transforming the shape of her avatar, making it into a more humanoid appearance to walk on land and a fish to swim in the sea. While in the sea, the Demon was incredibly fast, making her trips even quicker than if one were flying instead. Although inhabiting the body of its host while possessing them, the Demon of Envy's true essence remained in Kayo's Scissors. Because of this, the Demon's powers could be inhibited by a sealing spell; similarly, the demon was forced to abide by the "rules" put in place by Sickle until the end of the Third Period.

Character Connections
Allen Avadonia: The Demon's temporary charge. The Demon of Envy was not particularly attached to Allen and saw no need to make unnecessary conversation with the boy. Although she saw to it that he arrived at his destination safely, she didn't care for the boy's comfort and did not wish to take the effort to oversee his journey the rest of the way to Kayo.

Sickle: A figure the Demon knew. The Demon of Envy held knowledge of the sun god and regarded him as a professor figure.

Conceptualization and Origin

 * The Demon of Envy manifests herself as a fish; fittingly, the Leviathan, the patron demon of Envy, is sometimes portrayed as a sea monster.

Gallery
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Appearances

 * Seven Crimes and Punishments (story)
 * Quartets of Evil (first appearance; non-canon appearance)
 * Seven Crimes and Punishments! (non-canon appearance)
 * Seven Crimes and Punishments (album)