Chainsaw Man: Nine-Tailed Fox Fiend

Chainsaw Man, Gun Devil, Darkness Devil, and then there was the Nine-Tailed Fox Devil who was the last devil to ever escape hell and the one Devil who could rival the Darkness Devil after all it was the same Fox Devil who broke the doors of heaven and had heavenly flames...only for it to never appear in the public eye until years later before Chainsaw Man ever appeared as a Fiend that took over a woman's body. Later, Makima would later find the Nine-Tailed Fox Fiend and take her in into the Public Safety Devil Hunters who will later be in Special Division 4 which is well known in that sector except for two new people.