Unique Axiom: Is not an "axiom" but acts like one
Unique Axiom: Was used to overfeed [Abyss] & kill it
Unique Sword:: 自分's sword holds the Unique Axiom
Unique:: The axiom is outside all infinite axioms
Non-Standard: The Unique Axiom has no system
自分 was once multiversal scholar, studying the systems & environments of the Type IV Multiverse
However, when [The Abyss] threatened to destroy all existence, he was forced to take hold of his sword
This [Abyss] consumed innumerable axioms, & it was fated to consume all of them & eventually destroy existence
However, before being a swordsman, 自分 was a scholar, & 自分 made an axiom to save reality