The Seven Deadly Sins were the strongest and cruelest order of Holy Knights in the kingdom of Liones, which was formed by seven brutal criminals, who had all been convicted for grievous crimes and had carved the symbols of seven beasts onto their bodies. After having been framed for murdering the Great Holy Knight, they were indefinitely disbanded, branded as traitors, and villains.

The members of this group, which was originally an independent order of knights serving the kingdom of Liones, were declared as traitors and villains after being framed for assassinating Zaratras, the Great Holy Knight, after heeding an order to meet up with him at the castle. They found him murdered through no fault of their own and were quickly surrounded by the kingdom's Holy Knights. Meliodas ordered the group to disperse and avoid capture, and everyone was able to escape separately. It was initially suspected that one of the members was a traitor who helped in the nefarious plot, as Meliodas was knocked unconscious shortly after issuing his order. It is later revealed that Merlin was the perpetrator (though for reasons still largely unknown) - however, she did ask for forgiveness. In addition, one of the Seven Deadly Sins' feats includes defeating the troll queen, them having also broken the Great Druid Altar. 

The Seven Deadly Sins, before the betrayal, were widely known to be the strongest knights of Liones and were greatly admired by several Holy Knights and apprentices, including Little Gil and Doting Dale. The group was directly under the Great Holy Knight Zaratras' command.

Ten years later, the Seven Deadly Sins reappeared in the kingdom, having regathered six of its members over a short duration. They aided Elizabeth, the third princess of Liones, and helped her liberate the kingdom from the oppressive rule of the Holy Knights and stop Hendrickson's plan to release the long-sealed Demon Clan into the world.

With Hendrickson's defeat and his villainous plan to revive the Demon Clan being fully realized by the rest of the kingdom, the Seven Deadly Sins were praised as heroes for saving the kingdom, cleared of their framed crimes, and welcomed back into the kingdom of Liones once more.

It’s been 50 years since the Seven Deadly Sins and their victory over Hendrickson and in that time peace has reigned throughout the kingdoms. However, sightings of demons have risen   across the lands. With the sightings also came disappearances of both Holy knights and citizens across the kingdoms. The newly created Holy Knights now investigate both the sightings and the disappearances.

It seems because of the sightings of demons, the Seven Deadly Sins have returned to the world, but not in physical form. Both their symbols and powers have chosen new Holy Knights to help fight the possibility of the return of the Demon Clan. However, without the original Deadly Sins; can those chosen to represent them truly save the world or will it be allowed to burn in fire and brimstone. 
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Character sheet:
Name:
Age:
Gender:
Deadly Sin or Holy Knight: (all Sins are now taken. only Holy Knights will be accepted) 
Magical Power:
Weapon: (Three is the max) (No Fire Arms)
Appearance: 
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Deadly Sins: (First Come Fist Serve) 
The Dragon's Sin of Wrath: [b]olcharlieboi[/b]
The Boar's Sin of Gluttony: [b]zellected[/b]
The Grizzly’s Sin of Sloth: [b]The ghost in black[/b]
The Serpents Sin of Envy: [b]Blizz[/b]
The Fox’s Sin of Greed: [b]Lady Athena[/b]
The Goat's Sin of Lust: [b]NekoJordan[/b]
The Lion's Sin of Pride: [b]Eviledd1984[/b]