Weapon Devils

The Weapon Devils (の) were a group of 7 devils that previously served under the Four Horsemen, each member embodies the fear of a certain type of weapon. All Weapon Devils are now currently fused with a human.

History
There isn’t much information about the Weapon Devils before they were fused with their respective human, with very little information provided by Makima. The Weapon Devils once fought alongside the Four Horsemen against Pochita, but at the height of the battle, Pochita vanished and is reduced to a completely changed, near-death state and ended up on Earth.

The Weapon Devils also somehow ended up on Earth, whether it's because they were killed in the battle and reincarnated or not is unknown. They later become fused with different humans all throughout the world, thus creating 7 new hybrids.

Trivia

 * Given how the Crossbow Devil was fused with a hybrid who was known as “the first devil hunter”, who was shown to be an ageless immortal that has been around for more than a few decades, it is questionable how they were able to be part of the battle with the other Weapon Devils and Four Horsemen against Pochita.