Eternity Devil

The Eternity Devil is the primary antagonist of the Eternity Devil Arc.

Appearance
The Eternity Devil appears to be made up of several different body parts of varying sizes, this alludes to the fact that it is the Eternity Devil since there seems to be no end to these body parts. It is also of an extremely large size.

Personality
It finds joy in the fear of others, this strengthens the Eternity Devil.

Plot
A separate head of the Eternity Devil appears first in chapter 15. This head is swiftly eliminated by Power. After this, the Aki and Himeno squads walk up the stairs. Only to find out that they always return to the same floor, the 8th floor. Upon further inspection, they find out that all the exits lead to the 8th floor and that the time is stuck on 8:18. After a while, the devil which Power killed starts to grow, big enough to block an entire corridor. Once it sees the Devil Hunters the Eternity Devil proposes a contract. The contract is that in order for them to leave alive they would need to sacrifice Denji, specifically his heart which is made from Pochita. Himeno tries to kill it with her Ghost Devil but fails to kill it. At this point, the Eternity Devil reveals that they cannot kill him since that is not his real body but in fact, they are in his stomach and therefore cannot attack his heart. The Eternity Devil continues to grow with the fear. This forces Denji to activate his Chainsaw powers and attack him. The Eternity Devil points out that the Chainsaw Devil has gotten weaker, alluding to the fact that they had already faced each other in the past.

Abilities
Spatial Manipulation: The Eternity Devil could turn an entire floor of a hotel into a looped section of space, making escape in any direction impossible. This section of space effectively becomes the Eternity Devil's stomach.

Enhanced Strength: The Eternity Devil possess a great deal of physical power, being able to tear Denji's body apart even after his transformation and cause significant bloodloss.

Regeneration: The Eternity Devil can regenerate from repeated attacks.