Spoilers for Awakening.
Dee Eye Ell is a mysterious character. She is the second highest authority in the Dark Territory, but wishes to one day be Empress of Underworld. But we do not know her backstory. So, me and a friend have created a theory on her.
Dee Eye Ell has a very sexual character, using rape as a way of showing her power. But why is she like this? In Invading, Reki mentions that, if Lipia didn't succeed in the Knights Academy, then she would've been forced to work as a Dark Mage and study under Dee Eye Ell. Reki also mentions that Lipia is the only woman who wasn't forcefully taken to be a wife. We also know that Lipia owns an orphanage on the outskirts of the Dark Territory, filled with children who would've been sex workers or slaves. And we know that all Dark Mages hate Lipia Zankale. So, how does this have to do with D.E.E?
Well, Dee wishes to one day be Empress. It also sates that Dee has the ability of immortality, 'Administrator's secret to immortality'. But why all of this? From everything we know, I think that Dee was once a sex slave to a previous ruler of the Dark Territory, pre-Age of Blood and Iron. With being a sex slave to someone of power, she wishes to have all the power in the world to get back at people of power. But one part of her backstory includes getting the secret of immortality from Quinella. So, how?
We know that there are Minions on the Central Cathedral, but no human in the realm, other than Dee Eye Ell, is capable of creating them. Once Dee became part of the Council of Ten Lords, the second highest behind Emperor Vector, she used that power to 'seduce' Quinella into giving her a part of the secret in exchange for extra protection, hence the Minions. So, when Alice did that massive sacred art and crushed about 75% of the Dark Mages Guild, Dee survived thanks to the previous ruler of the Human Empire, Pontifex Administrator.
So, whatcha think? If you can add or criticise then please do tell me.