Trinity Seven

 is a group of seven female mages that mastered their respective Archives of magic, destined to meet the Demon Lord and influence the fate of their world.

Background
In every reality, seven female mages that have mastered each one of the Archives of magic gather to form the group Trinity Seven before encountering the Demon Lord. Although, the relationship between the Lord and Seven can differ between each universe, such as elimination, domination or recruitment, their meeting will always begin the destruction of the world and creation of another afterwards.

Additionally, only one member of each Archive can exist in a reality, thus if the equilibrium if violated, the original will be removed from existence in order to maintain balance. However, methods to circumvent the requirement exists, but only utilizing a Demon Lord Factor has been able to successfully maintain subsistence.

Requirements
The Last Crest is the Ultimate Magic for each of it's respective Thema though the power is immense the consequences are very heavy. Tales said it's used in the beginning by seven greatest mages, to defeat the True Demon King and seal his soul in the furthest part of the world. Seeing the power, they decided that only one person should be able to use their ultimate magic. This is the beginning of Trinity Seven's system.

When using her Last Crest against Arbalisha, Yui reminds her opponent, "There's only one reason why everyone is so afraid of Trinity Seven".

Last Crest of each Archive can only be used by its respective Trinity Seven. This means no matter how deep a mage has done their research, they will never be able to understand that magic.

In case of Lilith and Anastasia, the world even decided to remove Anastasia because there can be only one Trinity Seven of Luxuria. Although, inconsistently, this doesn't happen in Liese Chronicle side story when she is transported to parallel universe and someone else holds the title.

The first shown Last Crest is Liese's Baal Peor or the Time Fissure in which she can create a super high-speed space that far surpasses reality's speed, when looked at it properly it is a pseudo-version of stopping time. The consequence is that the user will be stuck in the high-speed space for all eternity, until someone can release her.

Levi used "Leviathan" several times, but it's always a bluff or fake because she is always keeping her true power hidden from the enemy. Even during times when it seems hopeless, she still doesn't consider it worth showing her secret card.

Members
TBA

Trivia
TBA