Knights of the Ashen Flame

The, also called the , are an organization under the guidance of the Preacher, creating artificial Flame Humans, and seeking the Adora Burst. Their true motives remain unknown.

Appearance
The White Hoods have two different uniforms. The most common among them, is a white burqa-type mask that conceals their face, a large white cape with a red cross-insignia on the back resembling that of the Special Fire Brigade as well as a white shoulder-guard, a dark jumper with the same cross-insignia on it, white gloves, a jagged belt around their waist that holds up their white trousers that have a thick dark line going across the thigh area, and seemingly go all the way down to their feet, covering them. Some members of the group instead don a white cloak that covers their shoulders and has a hood.

VS. 1st Special Fire Brigade arc
One of the White Hoods appears overlooking the scene of Shinra Kusakabe and Rekka Hoshimiya's fight, along with a comrade on a rooftop. Following Rekka's capture, the archer takes aim at him with his Ignition Ability, and fires an arrow at Rekka's chest, killing him in the process. Turning their attention towards the other Fire Officers, the person attempts to impale Karim Fulham, but manages to sever Foien Li's arm instead. Unable to visually locate the Fire Officers, and having their position exposed, the two retreat, having accomplished their objective, commenting that the "Nativity Flame Festival" has begun throughout Tokyo.

Preacher Pursuit arc
The Ash Flame Chivalric Order appeared along with Shō Kusakabe in their secret headquarters.

Asakusa arc
After discovering the 8th Special Fire Brigade are visiting the 7th in Asakusa, the White Hoods prepared to attack them and cause disruption like they did two years ago in Asakusa. Unknowingly to the 8th and 7th, Jonah of the White Hoods used his Ignition Ability to fool both brigades and cause a fight between them. Later, once Arrow set the Bugs loose in the district, countless people became artificial Flame Humans and the citizens were fighting amongst themselves, being tricked by Jonah's ability to change the appearance of people. Arrow and Haran were confronted by Shinra and Arthur, and the two teams fought, resulting in Haran choosing to become a Demon Flame Human himself. As Shinra and Arthur struggled against such a foe, Benimaru stepped in, and finally defeated him. Arrow and Haran returned to their base to inform their leader of Haran's death, and a "demon within the 8th" acquiring the Adora Burst and Adora Link, with Shō stating that he will go on the attack next time.