Death Devil

The Death Devil (の) is the Devil that embodies the fear of death and a member of the Four Horsemen. She was mentioned by Makima, who sought to eradicate the other Horsemen, and later mentioned again by Hirofumi Yoshida.

Appearance
The Death Devil's appearance is currently unknown.

Personality
The Death Devil's personality is currently unknown.

History
The Four Horsemen and the Weapon Devils once engaged in a brutal battle against Pochita in Hell. However, in the midst of the battle, Pochita mysteriously vanished. Despite searches by the Control Devil, Pochita could not be found. Unbeknownst to the Four Horsemen and their underlings, this was because Pochita had changed forms on the verge of death and escaped to Earth.

Dating Denji arc
Hirofumi Yoshida knew of the Death Devil's existence, and how by swallowing Devils Pochita could erase their presence from the world. While trapped in the aquarium, he wondered to Denji if Chainsaw Man would be willing to eat the Death Devil for humanity.

Abilities
As a Devil, the Death Devil possesses all of the standard Devil abilities. Though her exact power is unknown, the Death Devil is esteemed to be exceptionally powerful, both because she is a member of the Four Horsemen, and because death is one of the most fundamental fears in existence.

Trivia

 * Given Death’s nature as a fear, it's possible that the Death Devil is also counted as a Primal Fear.