Assembled Card by Card
The group was built between 2002 and 2004 in guides and card boosters: Lilithmon was the first named member, and the card Advent of the Seven Great Demon Lords showed six members with a Baphomet silhouette holding the seventh place until Belphemon was revealed.
Lucemon's Rebellion
They were once high-ranking Angel Digimon. When Lucemon instigated a rebellion against God, they fell and were deleted to the Dark Area as punishment, where each continues to exist as the deadly sin it pursues.
Seven Who Never Gather
The Demon Lords neither cooperate nor turn on each other, whatever their interests or disagreements; each one is a calamity on its own. As a group, their natural rivals are the Royal Knights.
Ogudomon, the Sum of Sins
A Super Demon Lord with seven legs, seven eyes and an eighth eye unlike the others: it contains all the sins of the Digital World along with the power to atone for them, nullifying the power of any Digimon with even a hint of wickedness.
Crowns Born in Frontier
The Crowns of the seven deadly sins appeared first in Lucemon Shadowlord Mode's official artwork used to promote Frontier; only in 2004 did the Gate of Deadly Sins tie each Crown to one member.
Why Belphemon Sleeps
Belphemon was sealed in the deepest part of the Dark Area, and because its power was too immense, the very system that deleted the fallen angels forced its data into a sleep state.
Nobility of the Dark Area
Today the seven are the chief nobility of the Dark Area, residing in the den of demons at its heart, and each member holds the right to command legions of the Nightmare Soldiers.