Fire Devil in Chainsaw Man is a devil who embodies the concept of fire and serves as the secondary antagonist of the Academy Saga as a pawn of the Death Devil. The Fire Devil poses as the Justice Devil, contracts the students of Fourth East High School and approximately 350,000 members of the Chainsaw Man Church, and reveals its true form in Chapter 204, “With One Life”. According to Shueisha, Tatsuki Fujimoto wrote and illustrated Chainsaw Man.
The table below records 16 core attributes of the Fire Devil, with each attribute in the first column and the value of the attribute in the second column.
| Detail | Info |
|---|---|
| Full Name | Fire Devil (火の悪魔, Hi no Akuma) |
| Also Known As | The Justice Devil (false identity); the false Justice Devil of the Chainsaw Man Church |
| Species | Devil |
| Gender | Genderless |
| Concept Embodied | Fire; the fear of fire or of high and harmful temperatures, known as pyrophobia |
| Master | Death Devil, who holds the Fire Devil as one of her pawns |
| Allies | Fami (the Famine Devil) and Barem Bridge, who contracted the Church members with the Fire Devil |
| First Mention (as the Justice Devil) | Chapter 98, “Bird and War”, through the contract of the class president |
| Identity Revealed | Chapter 146, “Chainsaw Man War”, when Barem Bridge reveals that the Church contracted with the Fire Devil, not the Justice Devil |
| Debut (True Form) | Chapter 204, “With One Life”, emerging from the remains of the Fake Chainsaw Man |
| Contractors | The class president, Yuko, the Fake Chainsaw Man, and approximately 350,000 members of the Chainsaw Man Church |
| Abilities | Desire granting, collective empowerment, fire imagery, fire dispersal, standard devil abilities |
| Popularity Poll | 105th place in the Third Popularity Poll with 94 votes |
| Voice Actor | None announced; the Fire Devil has not appeared in the Chainsaw Man anime |
| Status | Alive; the Fire Devil vanishes after confronting Denji in Chapter 205, and its later whereabouts remain unrevealed |
Spoiler warning: This guide covers the complete story of the Fire Devil, including the death of the class president and Mr. Tanaka, the madness and death of Yuko, the transformation of 350,000 Chainsaw Man Church members into Pseudo-Chainsaw People, and the emergence of the Fire Devil from the Fake Chainsaw Man in Chapter 204.
Who Is the Fire Devil?
The Fire Devil is a devil who embodies the concept of fire and draws power from the human fear of fire and of high and harmful temperatures. The Fire Devil serves as the secondary antagonist of the Academy Saga, and the Fire Devil acts as a pawn of the Death Devil. The Fire Devil serves as the overarching antagonist of the Justice Devil arc under the guise of the Justice Devil.
The Fire Devil matters because the Fire Devil runs the longest deception in Part 2 of Chainsaw Man. Every contract made with the supposed Justice Devil in the Justice Devil arc and the Chainsaw Man Church arc is a contract with the Fire Devil. The deception shapes the fates of Asa Mitaka, Yuko, the Fake Chainsaw Man, and 350,000 Church members.
What Does the Fire Devil Look Like?
The Fire Devil in true form looks like a tall devil with a flaming head, a neck surrounded by sticks resembling a campfire or a wooden pyre, and a jagged mantle of burning branches across the shoulders. The arms of the Fire Devil stretch unnaturally and resemble ashen logs, and the hands and fingers of the Fire Devil resemble dry wood. The Fire Devil wears a seemingly burnt robe.
The face of the Fire Devil is surprisingly humanoid, with the top half obscured by flame. The Fire Devil has two right eyes that poke through the fire and no eye on the left side of the face. The mouth of the Fire Devil resembles an arrow pointing upward or a cross, and thin flame-like extensions emerge from the back of the Fire Devil.
What Is the Fire Devil’s Personality?
The Fire Devil has a calm, nonchalant personality hiding a manipulative and ideologically driven nature, built around psychological warfare rather than direct confrontation. The Fire Devil shows no remorse over driving its contractors insane through its power.
What Are the Fire Devil’s Powers and Abilities?
The Fire Devil possesses 4 main powers and abilities: desire granting, collective empowerment, fire imagery, and fire dispersal, along with all of the standard devil abilities. The standard devil abilities include the ability to make contracts with humans. The power of the Fire Devil comes from the fear of fire, known as pyrophobia.
Desire granting: The Fire Devil grants contractors the ability to transform depending on what they desire. The Fire Devil sparks the embers of a false perception of justice within the desire of the contractor, and the Fire Devil gives the contractor a form that reflects that form of justice.
Collective empowerment: The Fire Devil grows more powerful based on the number of people who have contracted with it. According to Barem Bridge, approximately 350,000 people contracted with the Fire Devil through the Chainsaw Man Church. The forms of the contractors shift from hideous and monstrous shapes toward forms resembling Chainsaw Man as the Fire Devil grows more powerful.
Fire imagery: The Fire Devil creates flames in which the Fire Devil projects images. The Fire Devil uses this ability when the Fire Devil shows Denji the story of the twin brothers through a flame.
The contracts of the Fire Devil carry a hidden price that sets the Fire Devil apart from other devils. The Fire Devil does not seem to ask for any price in exchange for a contract, and Yuko tells Asa Mitaka that the price of her contract is only to receive a heart that shines with justice. The words of Barem Bridge imply that the true price of the contract is the humanity of the contractor, and the contractors effectively transform into devils.
How Did the Fire Devil Deceive the Students of Fourth East High School?
The Fire Devil deceived the students of Fourth East High School by making contracts with them under the guise of the Justice Devil, beginning with the class president in Chapter 98, “Bird and War”. The class president makes a contract with the Fire Devil because she feels jealous of Asa Mitaka for capturing the attention of Mr. Tanaka. The class president also resents the aloofness of Asa Mitaka and the lack of socialization in the class.
The class president uses her contract on the way to visit the memorial of Bucky with Mr. Tanaka and Asa Mitaka. The class president transforms into a being made of muscle and attempts to kill Asa Mitaka. The class president later dies along with Mr. Tanaka at the hands of the War Devil, Yoru, after Yoru takes the body of Asa Mitaka.
Yuko also makes a contract with the supposed Justice Devil, and the contract of Yuko allows her to read the mind of Asa Mitaka. Yuko uses the contract to punish the bullies who persecuted Asa Mitaka, and Yuko transforms into a thin and gaunt being with an uncovered brain and tentacles instead of legs. After her defeat by Chainsaw Man, Yuko warns Asa Mitaka that the Justice Devil remains at Fourth East High School, possibly holding contracts with other students.
What Happens to the Fire Devil in the Chainsaw Man Church Arc?
The Fire Devil in the Chainsaw Man Church arc stands revealed in Chapter 146, “Chainsaw Man War”, as the true devil behind the Church, holding contracts with approximately 350,000 members. The revelation comes from Barem Bridge while Public Safety agents escort him alongside Denji, Fumiko Mifune, and Nayuta. Barem Bridge explains that the Church lied about the identity of the devil, while the rest of the story of the Church remains truthful.
The Church arc begins after the attack of the Falling Devil and the gradual rise of the Chainsaw Man Church. A person claiming to be Chainsaw Man appears during a press conference and declares that he has made a contract with the Justice Devil. The person later becomes known as the Fake Chainsaw Man, and the Fake Chainsaw Man serves as the public face of the Church alongside Haruka Iseumi.
Fami stands behind the scenes as one of the leaders of the Church, and Barem Bridge enlists people to make contracts with the Fire Devil. Haruka Iseumi attracts more people to the cause through public promotion, and the Church grows into a mass movement. The stated goal of the Church is to aid Chainsaw Man in preventing the Age of Devils prophesied by Nostradamus and achieving a world without evil.
Barem Bridge explains the mechanics of the Fire Devil contracts in Chapter 146. The more people contract with the Fire Devil, the stronger the power of the contractors becomes, and most contractors lose control over themselves. The earlier forms of the contractors appear much more monstrous, and the later forms resemble Chainsaw Man as the Fire Devil grows more powerful through contracts. The mass contracts enter through mass weddings held at the Chinese and Canadian locations of the Church at 5 o’clock on the day of the revelation.
The transformed members become Pseudo-Chainsaw People, and the Pseudo-Chainsaw People sprout chainsaws from their heads and arms. The Pseudo-Chainsaw People lose their minds completely and behave like zombies, killing and eating people they encounter. The Pseudo-Chainsaw People regenerate from any injury when someone pulls the starter on their chest, and Public Safety must cremate the Pseudo-Chainsaw People to kill them fully.
The transformation erupts into a battle between humanity and the Pseudo-Chainsaw People throughout the city. The raging war distracts Public Safety from guarding the weapon hybrids, and the weapon hybrids escape their captivity during the chaos. Barem Bridge burns down the apartment of Denji and Nayuta, and Barem Bridge orders the Pseudo-Chainsaw People to kill Nayuta, calling her a witch.
How Does the Fire Devil Reveal Itself in the War Devil Arc?
The Fire Devil reveals itself in the War Devil arc by emerging from the remains of the Fake Chainsaw Man in Chapter 204, “With One Life”, after Denji decapitates and cuts down the doppelganger. The Fire Devil compliments Denji for his strength, and the Fire Devil asks Denji whether he remembers what the face of the imposter looked like before. The emergence reveals that the Fire Devil hid inside the body of the imposter from the very start.
The real Death Devil then kills both the Fake Chainsaw Man and Fami, turning them into brainwashed slaves. The Fake Chainsaw Man cannot elaborate further on the Fire Devil before his death, and the details of the Fire Devil remain hidden until Chapter 204. During his battle against Denji and Yoru, the Fake Chainsaw Man assimilates multiple Church members into his body by manipulating their contracts with the Fire Devil.
The Fire Devil explains the origins of the Fake Chainsaw Man to Denji through flames that project images of the twin brothers. The Fire Devil condemns Denji for not remembering the human face of the imposter,. The Fire Devil then tells Denji that he will choose between two options again, and the Fire Devil warns Denji not to make the same mistake twice before vanishing.
Fire Devil’s Relationships With Other Characters
Death Devil: The Death Devil holds the Fire Devil as one of her pawns, and the Fire Devil serves the plans of the Death Devil indirectly through the Church. The Fire Devil counts among the high-ranking devils who will greet the Death Devil upon her descent to Earth, according to Yoru.
Fami: Fami leads the Chainsaw Man Church behind the scenes, and Fami uses the Fire Devil contracts to build an army of Pseudo-Chainsaw People. Fami plans to strengthen Chainsaw Man and the War Devil enough to defeat the Death Devil, and the Fire Devil provides the mechanism for that plan.
Barem Bridge: Barem Bridge enlists people to make contracts with the Fire Devil, and Barem Bridge reveals the true identity of the Church devil in Chapter 146. Barem Bridge explains the mechanics of the Fire Devil contracts to Denji, Fumiko Mifune, and Nayuta while under escort, and Barem Bridge burns down the apartment of Denji and Nayuta to force Denji into becoming Chainsaw Man.
Denji: Denji stands as the target of the manipulation of the Fire Devil and the witness of the true form of the Fire Devil. The Fire Devil compliments the strength of Denji after the defeat of the Fake Chainsaw Man, and the Fire Devil warns Denji that he will choose between two options again. The warning of the Fire Devil shapes the later choices of Denji between Yoru and the Death Devil.
Asa Mitaka: Asa Mitaka suffers the consequences of the contracts of the Fire Devil at Fourth East High School. The class president attacks Asa Mitaka out of jealousy over the attention of Mr. Tanaka, and Yuko uses her contract to read the mind of Asa Mitaka. The Fire Devil never meets Asa Mitaka directly in its true form, and the connection between the two runs through the student contractors.
Yuko: Yuko contracts with the supposed Justice Devil to punish the bullies who persecuted Asa Mitaka. The contract of Yuko grants mind-reading and a gaunt transformed form, and the contract drives Yuko toward murder and madness. Yuko warns Asa Mitaka that the Justice Devil remains at Fourth East High School, and the warning of Yuko outlives Yuko herself.
The Fake Chainsaw Man: The Fake Chainsaw Man carries the Fire Devil inside his body from the very start, and the Fake Chainsaw Man transforms into a seemingly perfect copy of Chainsaw Man. The Fake Chainsaw Man controls Church members through their contracts with the Fire Devil, and the Fake Chainsaw Man assimilates members into grotesque arms during the battle against Denji. The Fire Devil emerges from the remains of the Fake Chainsaw Man after Denji cuts the doppelganger down.
Frequently Asked Questions (FAQs)
Summary of Fire Devil in Chainsaw Man
Fire Devil in Chainsaw Man begins as a devil who embodies the fear of fire, found injured by two brothers who treat its wounds and urge it to do the right thing alongside Chainsaw Man. The Fire Devil grants the brothers the ability to transform into the shape of their justice, and the Fire Devil begins making contracts with students of Fourth East High School under the guise of the Justice Devil.
The class president contracts with the Fire Devil out of jealousy toward Asa Mitaka, and Yuko contracts with the supposed Justice Devil to punish the bullies of Asa Mitaka. Both contractors lose themselves to madness, and both contractors die in the Justice Devil arc. The Fire Devil hides behind the Justice Devil identity while the Chainsaw Man Church grows into a mass movement under Fami, Barem Bridge, and Haruka Iseumi.
Barem Bridge reveals the deception in Chapter 146, when approximately 350,000 Church members enter contracts with the Fire Devil through mass weddings and transform into Pseudo-Chainsaw People. The transformed members lose their minds, regenerate from any injury unless cremated, and battle humanity across the city while the weapon hybrids escape captivity.
The Fire Devil reveals its true form in Chapter 204, emerging from the remains of the Fake Chainsaw Man after Denji cuts the doppelganger down. The Fire Devil shows Denji the story of the twin brothers through flames, condemns Denji for forgetting the human face of the imposter, and warns Denji that he will choose between two options again before vanishing through fire dispersal.
The Fire Devil holds 4 main powers: desire granting, collective empowerment, fire imagery, and fire dispersal, along with the standard devil abilities. The Fire Devil ranks 105th in the Third Popularity Poll with 94 votes, and the Fire Devil draws power from pyrophobia, the fear of fire and of high and harmful temperatures.
