Stone Devil

The Stone Devil is a devil that embodies the fear of stones.

Appearance
The Stone Devil's appearance is currently unknown.

Personality
The Skin Devil's personality is currently unknown.

History
At some point Kusakabe made a contract with the Stone Devil, for an unknown price.

Abilities
Not much is known about the Stone Devil's abilities, except that it can bestow the ability for humans contracted with it to petrify beings upon standing on a special circle and blowing through their hand at them.

Blood Consumption: As a devil, the Stone Devil should be able to restore its health by consuming blood.

Revival: As a devil, the Stone Devil should revive in Hell after being killed effectively making it immortal.