Public Safety Devil Hunter Division—Recruitment Brief

TO: Incoming Division Recruits FROM: Public Safety Bureau, Special Division 4 RE: Operational Orientation—What You Need to Know Before Your First Assignment

You signed up to hunt Devils. Before you die on your first mission — and statistically, you probably will — read this brief. It covers the threat taxonomy, contract mechanics, and survival guidelines that separate veterans from casualties.

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Threat Taxonomy: What You'll Be Fighting

Every Devil in Chainsaw Man is born from a human fear. The stronger the fear, the stronger the Devil. This is the only rule that matters, and it governs everything about how you design a Devil OC.

Fear strength tiers:

Fear Category	Example Devils (Canon)	Power Level	OC Design Space
Primal fears	Darkness Devil, Falling Devil, Death Devil	Near-godlike, conceptual	Off-limits for balanced OCs. These fears are universal and ancient.
Societal fears	Gun Devil, War Devil, Control Devil	Country-threatening	Major antagonist tier. Your OC would need an entire arc built around them.
Common fears	Bat Devil, Leech Devil, Snake Devil	Strong but fightable	The sweet spot for Devil OCs. Recognizable fears with clear visual identity.
Niche fears	Tomato Devil, Chicken Devil, Grape Devil	Weak, often comedic	Played for laughs in canon. Valid for comic relief OCs or ironic subversion.
Forgotten fears	Fears humanity no longer holds	Effectively dead	Interesting concept space—what happens to the Devil of something people stopped fearing?

The Chainsaw Devil is special because anything it eats is erased from existence — including the fear itself. If your OC's Devil concept feels too similar to one the Chainsaw Devil already consumed, that's actually a plot hook: maybe it's trying to come back.

Designing Your Devil: Fear as Form

The best Devils in Chainsaw Man have visual designs that directly express their fear concept. The Darkness Devil doesn't just control darkness — its body is made of astronaut corpses fused together in prayer poses, evoking the terror of dying alone in space. The Gun Devil is literally a mass of gun barrels shaped into a torso.

Devil design worksheet:

1. Name the fear. Be specific. "Fear of deep water" is better than "water." "Fear of being watched" is better than "eyes."
2. What does the fear look like when given a body? Not literally — metaphorically. The Fear of Abandonment might look like a figure with dozens of grasping hands. The Fear of Debt might manifest as something that grows larger the more you interact with it.
3. What is the Devil's signature ability? It should be a supernatural expression of the fear. The Knife Devil cuts. The Future Devil sees ahead. Keep the ability tightly linked to the concept.
4. How intelligent is it? Weak Devils act on instinct. Mid-tier Devils can speak and scheme. Primal Devils are alien intelligences that barely acknowledge humans exist.

The Three Types of Devil-Touched Characters

Chainsaw Man draws hard lines between how humans relate to Devils. Your OC must be one of these.

HUMAN DEVIL HUNTER — The baseline. Fights Devils using contracts, weapons, and desperation. Most die young. Visual design is utilitarian: everyday clothes, visible weapons, disheveled. Think "underpaid government employee who fights monsters." Key question: Why do they do this job? Money (Denji), revenge (Aki), obligation (Himeno)?

FIEND — A Devil that has taken over a human corpse. The human is gone; the Devil pilots the body. Always has a visible non-human head modification (Power's horns, Violence Fiend's mask-fused face). Weaker than pure Devil form. Cannot make contracts. Design tip: Start with a normal human appearance, then corrupt one feature dramatically.

HYBRID — The rarest type. A human fused with a Devil's heart who can transform by pulling a trigger mechanism on their body (Denji's chest cord, Reze's neck pin). Can regenerate from nearly any wound by consuming blood. Retains human consciousness during transformation. Design tip: The trigger mechanism should be thematically linked to the Devil concept.

Contract Mechanics: Power at a Price

Human Devil Hunters gain supernatural abilities through contracts with Devils. Every contract has a cost, and the cost is always personal.

Contract structure:

"I give you [something I value]. In exchange, you give me [a specific power]."

Canon costs: Aki gave lifespan to the Curse Devil and an eye to the Future Devil. Himeno gave her entire body to the Ghost Devil for one final attack. Small costs buy small powers. Devastating costs buy devastating powers.

For your OC's contract, answer:

1. Which Devil did they contract with?
2. What did they sacrifice? (Body part, sense, memory, years of life, a specific emotion)
3. What power did they receive?
4. Is the Devil satisfied, or waiting for more?

Division Structure: Where Your Hunter Fits

Public Safety Devil Hunters operate in numbered divisions. Your OC's placement signals their experience and expendability.

• Divisions 1-3: Elite units, experienced hunters, high-profile targets. Your OC needs years of survival and scars to justify placement here.
• Division 4 (Makima's): The canonical division. Weird, expendable, full of Fiends and outcasts nobody else wanted.
• Divisions 5-8: Standard operational. High turnover, where most new recruits land and most new recruits die.
• Private sector: Yakuza-affiliated hunters, freelance contractors, and religious organizations all hunt Devils outside government channels.

Prompt Strategy for Chainsaw Man Characters

Fujimoto's art style is raw, kinetic, and deliberately messy. Clean linework and polished designs look wrong for this series. Lean into grit.

"A Chainsaw Man-style Devil Hunter in a wrinkled white dress shirt and loose tie, holding a revolver in one hand, blood-spattered, exhausted expression, standing in a destroyed urban street with a dead Devil dissolving behind them, dark and gritty atmosphere, manga ink style"

Key Chainsaw Man visual markers:

• Everyday clothes, not armor or costumes (Denji wears a tracksuit)
• Blood. Lots of blood. It's the series' visual currency.
• Urban environments—convenience stores, apartments, streets, offices
• Exhaustion and damage on characters rather than cool poses
• Devils should look genuinely unsettling, not cool

Frequently Asked Questions

How do I avoid making my Devil OC too powerful? Anchor it to a specific, limited fear. "The Needle Devil" is inherently less powerful than "The Pain Devil" because fewer people fear needles specifically versus pain in general. Specificity is your power-scaling tool.

Can my OC be a Hybrid of a fear that already has a Devil in canon? Tricky. Canon suggests each fear has one Devil. However, if a Devil is killed in Hell, it reincarnates — so your Hybrid could carry the heart of a Devil that's currently "between lives." Alternatively, fears can overlap: "The Blade Devil" and "The Knife Devil" could theoretically coexist as distinct but related fears.

What motivates Devil Hunters besides survival? Denji wants a normal life. Aki wanted revenge. Himeno wanted to protect her partners. Kobeni was forced into it by her family. The mundane, human motivations are what make Chainsaw Man's cast work. Grand heroic purpose feels out of place here.

Should my OC be from Part 1 or Part 2's timeline? Part 2 (the school arc) exists in a world where Devils are publicly known and Devil Hunters have celebrity status. A Part 2 OC might be a Devil Hunter influencer, a student dealing with Devil attacks at school, or someone navigating the new public awareness of Devils.

How do I design a contract that feels fair? It shouldn't feel fair. The Devil always gets the better deal. Design the contract from the Devil's perspective: what would make a predator agree to help its prey?