It was apparently discovered by a mathematician named Timph Rye in an attempt to prove that willpower could be derived formulaically. Dkrzty's method of eliminating its enemies is erasing their minds by entering them, noted as a source of controversy by the Guardians. Although it has yet to make an actual appearance, Tomar-Re claiming that his nature means that only the Guardians are aware of his presence even if he attends the Corps gatherings.