Leech Devil in Chainsaw Man is a devil who embodies the concept of leeches and serves as the secondary antagonist of the Bat Devil arc. The Leech Devil appears in Chapter 9 moments after Denji kills the Bat Devil, severs the hand of Denji, eats the hand, and dies in Chapter 10 when the Fox Devil of Aki Hayakawa decapitates the Leech Devil. According to Shueisha, Tatsuki Fujimoto wrote and illustrated Chainsaw Man.
The table below records 16 core attributes of the Leech Devil, with each attribute in the first column and the value of the attribute in the second column.
| Detail | Info |
|---|---|
| Full Name | Leech Devil (ヒルの悪魔, Hiru no Akuma) |
| Also Known As | The Leech Devil; the girlfriend of the Bat Devil |
| Species | Devil |
| Gender | Female |
| Concept Embodied | Leeches; the fear of leeches, known as bdellophobia, from the Ancient Greek βδέλλα, meaning leech |
| Arc | Bat Devil arc, the second arc of Part 1, running from Chapter 5 to Chapter 13 |
| Role | Secondary antagonist of the Bat Devil arc |
| Partner | Bat Devil, the boyfriend of the Leech Devil, with whom the Leech Devil shared a dream of devouring all humans |
| First Appearance | Chapter 9, “Rescue” |
| Death | Chapter 10, “Kon”, decapitated by the Fox Devil summoned by Aki Hayakawa |
| Anime Appearance | Season 1, Episode 4, “Rescue”, debut and death in the same episode |
| Abilities | Tentacle-like arms, elongated piercing tongue, blood consumption, enhanced strength, standard devil abilities |
| Voice Actor (JP) | Yuko Tachibana (Chainsaw Man anime, 2022) |
| Voice Actor (EN) | Corey Pettit (Chainsaw Man anime, 2022) |
| Popularity Poll | 85th place in the First Popularity Poll with 24 votes; 107th place in the Third Popularity Poll with 91 votes |
| Status | Deceased; killed in Chapter 10, with no confirmed reincarnation in the story |
Spoiler warning: This guide covers the complete story of the Leech Devil, including the death of the Bat Devil, the severing of the hand of Denji, the fight between the Leech Devil and Denji, and the death of the Leech Devil in Chapter 10.
Who Is the Leech Devil?
The Leech Devil is a devil who embodies the concept of leeches and draws power from the human fear of leeches. The Leech Devil serves as the secondary antagonist of the Bat Devil arc, and the arc runs from Chapter 5 to Chapter 13. The arc appears in the guide to Chainsaw Man arcs in order.
The Leech Devil matters because the Leech Devil turns a victory into a second crisis, arriving at the exact moment Denji defeats the Bat Devil and rescues Power and Meowy. The Leech Devil forces a blood-drained Denji into a fight Denji nearly loses, and the fight ends only when Aki Hayakawa intervenes.
What Does the Leech Devil Look Like?
The Leech Devil looks like a large wrinkled leech-shaped creature with four legs, two tentacle-like arms, and a face that consists entirely of a single large mouth with blocky teeth. The limbs of the Leech Devil end in circular orifices like the suckers of a leech, and the two arms stretch like tentacles during combat.
The Leech Devil carries long black hair and three pairs of udder-like glands. The hair of the Leech Devil covers the area where eyes would sit, and the Leech Devil has no visible eyes.
The coloring of the Leech Devil differs between the manga and the anime. In the colored manga, the Leech Devil appears yellowish, and in the anime, the Leech Devil appears in darker, more realistic leech colors.
What Is the Leech Devil’s Personality?
The Leech Devil has a personality built on hatred for humans, deep devotion to the Bat Devil, and open mockery of small dreams. The Leech Devil shares a dream with the Bat Devil of devouring all humans together, calls that dream sublime and beautiful, and treats the death of the Bat Devil as the shattering of that dream. The devotion of the Leech Devil drives every action of the Leech Devil in Chapters 9 and 10.
The Leech Devil shows a softer streak toward Denji, considering sparing Denji purely because Denji has a cute face. The Leech Devil abandons the idea when Denji refuses to run and stays to protect Power and Meowy.
The Leech Devil mocks the dream of Denji during the fight. The Leech Devil treats the desire of Denji to touch the chest of Power as a sleazy and worthless dream. The mockery backfires, because Denji answers with a challenge to settle the matter in a battle of dreams, and the challenge hardens the resolve of Denji.
What Are the Leech Devil’s Powers and Abilities?
The Leech Devil possesses 4 main powers and abilities: tentacle-like arms, an elongated piercing tongue, blood consumption, and enhanced strength, along with all of the standard devil abilities. The power of the Leech Devil comes from bdellophobia, the fear of leeches, and the Leech Devil uses each ability in the fight against Denji in Chapters 9 and 10.
Tentacle-like arms: The Leech Devil fights with two arms that stretch and strike like tentacles. The Leech Devil blasts a hole through the forearm of Denji with the first strike, severing the hand of Denji, and swipes at Denji with the tentacles through the fight, destroying buildings in the fury of the Leech Devil.
Elongated piercing tongue: The tongue of the Leech Devil stretches far beyond the mouth and pierces with ease. The Leech Devil skewers the torso of Denji with the tongue near the end of the fight, stopping Denji completely and leaving the Leech Devil ready to eat Denji.
Blood consumption: The Leech Devil feeds on human blood and flesh in the manner of a leech, picking up the severed hand of Denji and eating the hand in one gulp. The feeding worsens the blood loss that already limits Denji.
Enhanced strength: The Leech Devil possesses strength far beyond a human, and the Leech Devil withstands the blows of a partially transformed Denji. The Leech Devil takes punches and chainsaw slashes from Denji in stride and gains the upper hand through sheer durability.
How Does the Leech Devil Enter the Bat Devil Arc?
The Leech Devil enters the Bat Devil arc by rising from the remains of the Bat Devil in Chapter 9, “Rescue”, immediately after Denji kills the Bat Devil and rescues Power and Meowy. The entrance of the Leech Devil reverses the victory of Denji in a single moment. Denji celebrates the chance to touch the chest of Power, and the Leech Devil strikes before Denji enjoys the reward.
Power leads Denji to the Bat Devil after offering Denji as bait in exchange for Meowy. The Bat Devil swallows Power and Meowy instead of keeping the bargain, and Denji cuts the Bat Devil open to rescue both.
Power lies immobilized on the street after the rescue, unable to move a muscle. Denji stands over Power and Meowy in triumph, and the Leech Devil rises from the viscera of the Bat Devil behind Denji, introducing herself as the girlfriend of the Bat Devil.
The Leech Devil speaks the defining line of the Leech Devil at the entrance, saying that the Bat Devil and the Leech Devil dreamed of eating all the humans together. The Leech Devil calls the dream sublime and beautiful, blames an insignificant puppy dog for shattering the dream, and tells Denji that the cute face of Denji makes the killing a shame.
How Does the Leech Devil Fight Denji?
The Leech Devil fights Denji by severing the hand of Denji, eating the hand, and overpowering a Denji who cannot fully transform because of blood loss. The fight runs across Chapter 9 and Chapter 10, “Kon”, and tests Denji at the weakest point of Denji in the early story.
The Leech Devil opens the fight with a single devastating strike, blasting a hole through the forearm of Denji and severing the hand of Denji. The Leech Devil picks up the severed hand and eats the hand, and the loss of blood from the wound joins the blood Denji already lost against the Bat Devil.
Denji pulls the chainsaw cord in an attempt to transform, and the transformation fails, because Denji lacks the blood needed for a full transformation. Only a partial chainsaw blade emerges from the head of Denji, leaving Denji fighting with punches, a headbutt, and a jagged partial chainsaw instead of the full power of Chainsaw Man.
The Leech Devil briefly considers letting Denji go, and the mercy ends when Denji refuses to run to protect Power and Meowy. The two exchange blows, and the Leech Devil laments that a boy with sleazy desires killed the boyfriend of the Leech Devil.
Denji answers the mockery of the Leech Devil with a challenge, declaring that the desires of the Leech Devil and the Bat Devil are worth less than the desires of Denji. Denji proposes a battle of dreams, grabs the Leech Devil by the hair, and headbutts the Leech Devil with the partial chainsaw blade.
The Leech Devil wins the exchange through durability and reach, taking the punches and chainsaw slashes of Denji in stride. The Leech Devil skewers the torso of Denji with the elongated tongue, stopping Denji completely, and prepares to eat Denji.
How Does the Leech Devil Die in Chainsaw Man?
The Leech Devil dies in Chapter 10, “Kon”, when Aki Hayakawa summons the Fox Devil over the head of the Leech Devil and the Fox Devil decapitates the Leech Devil instantly. The death of the Leech Devil ends the second crisis of the Bat Devil arc and introduces the contract of Aki Hayakawa with the Fox Devil.
Aki Hayakawa appears at the moment the Leech Devil prepares to eat Denji and summons the Fox Devil, known as Kon. The Fox Devil bites down over the head of the Leech Devil, severing the head from the body in a single motion, and swallows the head happily.
The Fox Devil disappears in a puff of smoke after swallowing the head, and the enormous corpse of the Leech Devil stays slumped forward in the street, headless. Denji survives the fight and wakes up in a hospital room with Aki Hayakawa at the bedside of Denji.
The aftermath of the death of the Leech Devil reshapes the main cast. Makima arranges for Power to live with Denji and Aki Hayakawa, and Power becomes a permanent member of the household. The Leech Devil therefore serves as the catalyst for the living arrangement that defines the early chapters of Special Division 4.
What Is the Leech Devil’s Role in the Anime?
The Leech Devil in the anime debuts and dies in Season 1, Episode 4, “Rescue”, in the same episode. The anime compresses the manga appearance of the Leech Devil into a single episode. The episode picks up right after the fight between Denji and the Bat Devil in Episode 3.
The anime keeps the core beats of the manga fight, including the severed hand, the mockery of the dream of Denji, and the decapitation by the Fox Devil. The anime design gives the Leech Devil darker, more realistic leech colors than the yellowish coloring of the colored manga.
Yuko Tachibana voices the Leech Devil in Japanese, and Corey Pettit voices the Leech Devil in English.
Leech Devil’s Relationships With Other Characters
Bat Devil: The Bat Devil is the boyfriend of the Leech Devil and the reason the Leech Devil enters the story. The Leech Devil and the Bat Devil share a dream of devouring all humans together, and the Leech Devil calls that dream sublime and beautiful. The Leech Devil attacks Denji moments after Denji kills the Bat Devil, and the Leech Devil dies without ever restoring the shared dream.
Denji: Denji is the killer of the Bat Devil and the target of the revenge of the Leech Devil. The Leech Devil severs the hand of Denji, eats the hand, and mocks the dream of Denji during the fight in Chapters 9 and 10. The Leech Devil abandons the idea of sparing Denji for the cute face of Denji when Denji refuses to run from the fight.
Power: Power is the prize of the bargain between Denji and Power, and the Leech Devil threatens Power and Meowy during the fight. The Leech Devil plans to eat Power and Meowy after dealing with Denji, and the refusal of Denji to abandon Power and Meowy triggers the full fight. Power survives because Denji stays and Aki Hayakawa intervenes.
Meowy: Meowy is the cat of Power and the original reason Denji enters the Bat Devil arc. The Bat Devil swallows Meowy along with Power, and Denji rescues Meowy by cutting open the Bat Devil. The Leech Devil counts Meowy among the creatures the Leech Devil plans to eat, and Meowy survives because Denji protects Power and Meowy.
Aki Hayakawa: Aki Hayakawa is the killer of the Leech Devil by contract, arriving as the Leech Devil prepares to eat Denji. Aki Hayakawa summons the Fox Devil over the head of the Leech Devil, saving Denji and introducing the contract of Aki Hayakawa with the Fox Devil to the story.
Fox Devil: The Fox Devil is the instrument of the death of the Leech Devil. The Fox Devil, known as Kon, bites down over the head of the Leech Devil at the summons of Aki Hayakawa, decapitates the Leech Devil instantly, and swallows the head of the Leech Devil. The Fox Devil disappears in a puff of smoke, leaving the headless corpse of the Leech Devil in the street.
Makima: Makima is the handler of Denji and Power, and Makima shapes the aftermath of the death of the Leech Devil by arranging for Power to live with Denji and Aki Hayakawa after the fight. The Leech Devil never meets Makima directly, and the connection between the two runs through the aftermath of the fight.
Frequently Asked Questions (FAQs)
Summary of Leech Devil in Chainsaw Man
Leech Devil in Chainsaw Man begins as a devil who embodies the fear of leeches, appearing in Chapter 9 as the girlfriend of the Bat Devil moments after Denji kills the Bat Devil and rescues Power and Meowy.
The Leech Devil severs the hand of Denji, eats the hand, and fights a Denji who cannot fully transform because of blood loss. The Leech Devil mocks the dream of Denji, and Denji answers with a challenge to settle the matter in a battle of dreams.
The Leech Devil gains the upper hand by skewering the torso of Denji with an elongated tongue, and the Leech Devil prepares to eat Denji. Aki Hayakawa intervenes by summoning the Fox Devil, and the Fox Devil decapitates the Leech Devil in Chapter 10.
The death of the Leech Devil reshapes the main cast, because Makima arranges for Power to live with Denji and Aki Hayakawa after the fight. The Leech Devil holds 4 main powers: tentacle-like arms, an elongated piercing tongue, blood consumption, and enhanced strength.
The Leech Devil ranks 85th in the First Popularity Poll with 24 votes and 107th in the Third Popularity Poll with 91 votes. Yuko Tachibana voices the Leech Devil in Japanese and Corey Pettit voices the Leech Devil in English in the 2022 anime.
