Yoru
War Devil / Horseman of the Apocalypse
| Yoru | |
|---|---|
| Japanese Name | 戦争の悪魔 (ヨル) |
| Species | Devil (Horseman) |
| Host | Asa Mitaka |
| Rank | Horseman of the Apocalypse |
| Siblings | Makima (Control Devil), Fami (Famine Devil) |
| Goal | Retrieve Nuclear Weapons / Kill Chainsaw Man |
| First Appearance | Chapter 98 (Part 2) |
| Status | Active |
Last updated: 2026-06-03
Yoru Overview
Yoru is the War Devil and one of the Four Horsemen of the Apocalypse, alongside her sisters Makima (Control), Fami (Famine), and presumably a fourth representing Death. Unlike Makima who operated from within human institutions, Yoru is a more direct and impulsive force. After being severely weakened when Chainsaw Man ate part of her body in Hell (erasing the concept of war from human memory), she exists in a diminished state, forced to possess a human host to survive.
Her possession of Asa Mitaka creates the unique dynamic of Part 2: Yoru occupies half of Asa's brain, able to communicate mentally and take control of the body at will. When Yoru takes control, Asa's facial scars become visible and her demeanor shifts from anxious to aggressive. Yoru's ultimate goal is to defeat Chainsaw Man and force him to vomit up Nuclear Weapons, restoring the fear of war to its historical peak and reclaiming her former power.
War Devil Abilities
Yoru's power as the War Devil allows her to transform objects she possesses into weapons. The key requirement is ownership: she must genuinely feel that the object belongs to her for the transformation to work. The stronger her sense of possession, the more powerful the resulting weapon. This power has devastating implications when applied to human relationships, as Yoru can theoretically transform people she considers her "property" into weapons, though this has not been fully explored.
In her current diminished state, Yoru's power is a fraction of what it once was. At her peak, she commanded the concept of war itself: every battle fought by humans fed her strength. The erasure of World War II-level conflicts from human memory by Chainsaw Man has permanently reduced her power, making her the weakest of the Horsemen in the present timeline. Her quest to restore Nuclear Weapons is specifically about reigniting humanity's fear of large-scale war.
Relationship with Asa & Part 2 Role
Yoru's relationship with Asa is adversarial cooperation. She needs Asa's body to survive and pursue her goals, while Asa needs Yoru's power to protect herself from the devils that threaten her school. Their dynamic is constantly shifting: Yoru can seize control at any moment, but Asa's consciousness remains present, creating moments of internal conflict when Yoru's actions harm Asa's relationships or moral standing.
Yoru's primary target is Denji, who she does not initially recognize as Chainsaw Man. Her growing realization of his identity creates the central tension of Part 2: she wants to kill him, but she needs him alive to force him to vomit Nuclear Weapons, and Asa's growing romantic feelings for Denji complicate both goals. This triangular conflict between Yoru, Asa, and Denji distinguishes Part 2 as a more psychologically complex narrative than Part 1's straightforward revenge tragedy.
