The celestials are evil-aligned creatures of radiant power originated from the Numina as a result of the Numen Cataclysm. Contrary to their erinyes counterparts, celestials tend towards the humanoid traits associated with evil, manipulation, and malice: conformity, jealousy, intolerance, and zealotry are some examples. As a result, Aasimar are much less accepted than what would be normally seen in other parts of the multiverse.
Believing they are the penultimate source of order and truth in the Caelum Galaxy, celestials are most commonly known to participate in the Seraphic Inquisition, a movement to unite all sentient life in the galaxy under their celestine fist.