Abyss Trinity

Abyss Trinity, is the Crimson Magic King, and the Magic King of Luxuria. As well as Lilith Azazel's father.

History
He was summoned from another world, by the spriggans long ago to kill Arata, the magic king candidate of our world. He destroyed the town below the Sky Library and everything in a 100km radius, out of boredom. If anything, he was simply testing to see if he could also wield the magic king weapons of this world.

Story
His goal is to use the last key that Lilith possesses to open the gate of worlds, to regain his true power from his own world and rule this world as its magic king.

"Vanitas" Nothingness
Abyss' primary Thema centers around all consuming darkness and can return all of creation to nothing, including all seven Archives and the foundations of Magic itself. So far, Abyss has shown the ability to use this in the form of bindings, which very likely would've destroyed Akio if she hadn't been saved, and in the form of darkness itself, which consumes and destroys everything in its path. He notes that this magic can give one a taste of true Nihility, which reflects the concept of erasing others.