Stone Devil

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

Appearance
The Stone Devil appears to be roughly the same size as a average human being with stone like skin, a tail, canine legs and multiple pairs of eyes.

Personality
The Stone Devil's personality is mostly unknown. Kusakabe describes it as being fickle.

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.

Contract Creation: As a devil, the Stone Devil can bestow contracts upon humans for a price. The Stone Devil is known for being fickle with contracts, making it dangerous to use near allies. The contracts with it seen so far are:
 * A contract with Kusakabe for an unknown price. By standing inside of a special circle and blowing through a hole formed by his hand, Kusakabe can petrify enemies in front of him.

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.