All of Chainsaw Man's Arcs

Narrative Guide — Chainsaw Man's Structure and Arcs

Chainsaw Man is not structured like a classic shonen, with clearly defined arcs interspersed with tournaments and breaks. Tatsuki Fujimoto prefers brutal transitions, short breaths, and abrupt shifts in tone that strike without warning. Yet, upon closer inspection, the series does indeed break down into coherent narrative sequences, each with its own stakes, antagonists, and psychological evolution for Denji and his crew. This guide covers each arc, from the hero's impoverished introduction to the shift to Part 2, detailing the dramatic stakes and character trajectories. For an overview of the saga breakdown, you can also refer to the page Part 1 / Part 2: All Chainsaw Man Sagas, which complements this arc-by-arc analysis.

The Introduction Arc: The Birth of Chainsaw Man

It all begins in squalor. Denji, an independent devil hunter burdened with debts inherited from his father, lives with Pochita, a scrawny Chainsaw Devil he took in. The very first chapters establish a bleak social misery in just a few pages: organs sold, meals of dry bread, no future. This introduction serves a precise objective: to make the pact that follows credible. When the Yakuza betray Denji and leave him to die, torn apart by a zombie devil, Pochita merges with his heart to resurrect him in the form of Chainsaw Man. This foundational scene, replicated on many posters and illustrated on the Denji & Reze manga cover poster sold in the store, establishes the series' central premise: violence as the only language available to a character deprived of everything else.

The arrival of Makima, an enigmatic Public Safety Committee officer, concludes this arc by recruiting Denji. She promises him a normal life — a bed, food, a roof — in exchange for his complete loyalty. This seemingly innocuous promise actually structures everything that follows: Denji is a character whose desires are so primal (eating his fill, touching a breast, sleeping in a bed) that anyone who knows how to exploit them holds immense power over him. The Introduction arc is short but dense, and already raises the question that runs through the entire series: what makes us human when survival has reduced us to the state of beasts?

The Bat Devil Arc: First Recruits and First Bonds

Once integrated into the Public Safety Committee, Denji discovers the organization that will become his new surrogate family. The Bat Devil arc introduces Aki Hayakawa, a cold and methodical hunter haunted by the death of his family killed by the Gun Devil, and Power, a chaotic and hilarious Blood Fiend who literally captures devils as trophies in jars. The mission against the Bat Devil, who traps its victims in a folded dimension, primarily serves as a pretext for establishing the Denji/Aki/Power trio, the true beating heart of the series until the end of Part 1.

What is striking in this arc is the speed with which Fujimoto establishes a functional group dynamic despite initial hostility. Power openly despises humans, Aki distrusts Denji, and yet the scenes of daily life — sharing blood, eating meals together, arguing over a slice of cake — subtly build an improvised family far more solid than any grand pronouncements. This dynamic is not incidental: it psychologically prepares the reader to feel the full impact of losses that will occur much later, as the attachment to the trio is built here, chapter after chapter, on almost trivial details rather than on grand speeches of friendship. It is also in this arc that the power dynamic between Power and Denji, made of affectionate blackmail and petty victories, takes shape, later becoming a recurring comedic element throughout the series. Fans who adore Power for her disruptive energy will find a complete analysis of what makes this character so endearing from her first appearances in the article why Power is fans' favorite character and why it makes sense. To embody this trio at home, the Bunny Power FuRyu Original Edition figure remains one of the most sought-after items in the Power Chainsaw Man collection.

The Eternity Devil Arc: The First True Psychological Locked-Room Mystery

Sent on a routine mission to eliminate a devil in a building, Denji, Power, Aki, and the recruit Himeno find themselves trapped by the Eternity Devil, an entity capable of transforming a confined space into an infinite labyrinth where one never dies of hunger or thirst — only of boredom, despair, and slowly, madness. This arc marks a radical shift in tone: after the pure action of the beginning, Fujimoto experiments with the psychological horror of endlessly dilating time.

In terms of characters, the Eternity Devil is a formidable revealer. Himeno, until then in the background, gains new importance through her composure and sense of sacrifice. Power, whose selfishness one might believe boundless, chooses to abandon her own devil horn — an object she values more than her life — to save her companions, early proof that beneath the veneer of the capricious Fiend lies a real attachment. Denji, for his part, shows for the first time an unexpected strategic adaptability, foreshadowing the cunning he will later deploy against adversaries far more formidable than simple wandering devils. Those who want to understand this character in depth will find additional insight in Himeno, tribute to a character gone too soon. This often underestimated arc is also the one that firmly establishes the theme of nostalgia and loss, further developed in nostalgia and loss, the central theme of Chainsaw Man.

The Katana Man and Akane Sawatari Arc: Vengeance as a Mirror

With Denji becoming a prime target for anyone wanting to capture or sell Chainsaw Man, the Katana Man arc introduces a duo of bounty hunters seeking personal revenge: Akane Sawatari, a former colleague of Aki devastated by the death of loved ones, and her partner, who can wield katanas as living weapons through a demonic pact. This arc functions as a distorted mirror of Aki himself: Akane represents what a devil hunter becomes when grief transforms into destructive obsession rather than discipline.

Katana Man, for his part, develops a surprisingly tender relationship with his sister Kishibe... no, with his own sister whom he protects at all costs, adding a nuanced layer of humanity to a character introduced as a simple threat. The arc concludes with the decisive intervention of Kishibe, the legendary hunter from the Committee, whose presence instantly redefines the series' power scale. Fans of this cult character can delve deeper into his profile in Kishibe, the most badass devil hunter in the series, and find Aki in his most iconic form with the Banpresto Katana Original Edition figure or in the Aki Hayakawa collection.

The International Assassins Arc: Kishibe, Reze, and Makima's Trap

A true turning point in Part 1, the International Assassins arc sees Makima entrust Kishibe with the intense training of Denji, Power, and Aki, in an improvised dojo where dark humor coexists with almost comical training violence. But this interlude is short-lived: the Committee faces the arrival of international assassins sent to kill Chainsaw Man, in reaction to the very existence of the Gun Devil and its devastating power, historically responsible for the death of Aki's family.

It is in this arc that Reze appears, a cafe waitress Denji frequents and with whom he shares a touching romance before discovering that she is actually a human weapon linked to the Bomb Devil, sent to eliminate him. Their brief but intense relationship crystallizes Denji's central motif: every time he believes he is approaching a normal life, the violence of his world snatches it away from him. The final battle against Reze, fought in forced collaboration with Angel Devil, is one of the series' action highlights. A more in-depth analysis of Reze's character is available in Reze, the Bomb Girl: victim or manipulator?, while the battle itself ranks high in the top 10 coolest Chainsaw Man fights. The famous visual of this romance is immortalized on the Denji & Reze manga cover poster, one of the best-selling items in the posters collection.

The Gun Devil Arc: The Truth That Changes Everything

Alongside the assassins, the Gun Devil arc finally reveals the nature of the devil responsible for thousands of deaths worldwide, the very one who destroyed Aki's family. The revelation changes the game: the Gun Devil is not just a monster to be slain, it is a fragmented entity, pieces of which have been absorbed by different humans to create new kinds of hybrids, of which Kishibe himself has incorporated a part. This narrative structure—an evil so vast that it dissolves into the social fabric rather than remaining a single target—is typical of Fujimoto's writing, which rejects simple antagonists. This fragmentation of evil also has a concrete consequence on the balance of power within the Committee: some hunters who have integrated an infinitesimal part of the Gun Devil in turn become coveted targets, further blurring the line between hunters and hunted that structures the entire universe of the series.

For Aki, this arc is a moment of personal truth: after years of chasing an abstract ghost, he must come to terms with the idea that the revenge he pursued may never have a clear form to destroy. This shift prepares for his tragic descent in subsequent arcs. The complex workings of the Public Safety Committee, on which all these revelations depend, are detailed in how the Public Safety Committee actually works, an essential article for understanding the political stakes underlying the entire series, also discussed on the Chainsaw Man universe page.

The Control Devil Arc: The Beginning of the End of Part 1

This is the most devastating arc in all of Part 1. Makima finally reveals her true nature: she is the Control Devil, an entity embodying the fear of control and submission, whose power grows with the dread that all humanity collectively holds for her. Far from being a mere loyal officer, she has orchestrated most of the events from the beginning, including Denji's recruitment, with a single goal: to capture and possess Chainsaw Man, the most powerful weapon ever to exist, capable, according to legend, of erasing an entire concept from the face of the world if enough important devil heads are severed from him.

This arc is also that of the most traumatic loss in the series: Aki, manipulated and broken, ends up forcibly merging with the Gun Fiend to fight Denji, before dying in profoundly tragic circumstances, literally devoured by Makima before Denji's eyes. This scene left a lasting mark on readers and remains one of the most discussed deaths in the manga, analyzed in detail in the 5 most shocking deaths in the series and in Did Aki Hayakawa deserve a better ending?. Makima at this point becomes the ultimate antagonist of the series, a status dissected in why Makima is one of the best antagonists in modern shonen and the Control Devil: why Makima is so fascinating. For collectors, the 18cm Makima Stool Elegant Edition figure remains one of the most iconic pieces in the Makima figures collection.

The Final Battle Against Makima: The Death That Isn't One

Weakened, alone, having lost Aki and Power (who also sacrifices her life to try to save her friends), Denji must confront Makima in her most terrifying form: an entity composed of hundreds of fused corpses of heads of state, literally fear incarnate on a planetary scale. This climax shifts into an almost cosmic-horrific register, far removed from the typical action of the genre. Denji does not win this battle by brute force: he wins it by offering Makima, in her agony, the only meal she ever sincerely shared — a disturbing gesture of tenderness that closes the thematic loop of bread and sharing initiated in the very first chapter.

This alimentary obsession of Denji's, often mocked by other characters, here takes on its full symbolic meaning: it is precisely this naivety, this inability to see the world other than through the prism of his simplest needs, that allows him to resist ultimate manipulation. The article Denji's bread, small obsession, great symbolism details this motif, and the symbolism of blood in Chainsaw Man explained completes the analysis of the major visual motifs of this scene.

The End of Part 1: Grief, Reconstruction, and Moral Ambiguity

Part 1 concludes with an unrecognizable Denji: stripped of all illusions, having lost his surrogate parental figures (Aki, Power, and Makima herself in a twisted sense), he must relearn to live without direction imposed by a manipulative adult. The Committee, never entirely transparent about its true intentions, closes this dark period in an atmosphere of unresolved grief rather than triumphant victory — a choice that sparked much debate at the time of publication, as recalled in understanding the provisional end of Part 1.

This ambiguous ending is also a hallmark of Fujimoto's writing, which categorically rejects the clear-cut resolution typical of traditional shonen. No grand speeches, no unambiguous lessons: just damaged characters who keep moving forward because there's nothing else to do. This approach is at the core of what distinguishes the series from the rest of the genre, analyzed in why Chainsaw Man breaks the codes of classic shonen and in the comparison Denji vs Naruto: what does the Chainsaw Man hero really want?.

The Academy Arc, Part 2: a new beginning under a new guise

Part 2 opens years later in a completely different setting: a high school, where Asa Mitaka, an ordinary teenager whose life is turned upside down when she involuntarily becomes the host of the War Devil, Yoru, attends. This change of scenery is a radical gamble: after the constant urgency of Part 1, Fujimoto slows the pace to explore school life, social isolation, and the difficulty of making friends when one carries within them an entity ready to devour the world.

This narrative choice completely renews the series' central question — what does it mean to be human when cohabiting with violence — by posing it this time from the perspective of a young girl who asked for none of it. The arc also introduces the Fiend Academy, a secret school where young hybrids are trained to become weapons, supervised by a management whose intentions remain deliberately murky. The full context of this new saga is detailed in Part 1 / Part 2: all the Chainsaw Man sagas.

Asa Mitaka and Yoru: a forced cohabitation

The relationship between Asa and Yoru functions as an inverted mirror of that between Denji and Pochita: where Denji had merged with a devil by choice (even a desperate one), Asa finds herself a prisoner of a pact she never signed, forced to share her body and sometimes her will with an entity that despises her and seeks to eliminate Chainsaw Man to prove her supremacy among devils. This continuous tension between the two consciousnesses leads to scenes that are by turns comical and terrifying, a clever balance characteristic of the series.

Yoru herself is a fascinating character due to her consuming ambition: she wants to become the most powerful devil by devouring Chainsaw Man, but continually finds herself hampered by Asa's growing affection for Denji, whom she meets under a civilian identity at high school. The complete guide dedicated to this duo, available in the War Devil: all about Yoru and Asa Mitaka, details all their powers and evolution since their first appearance.

Denji the student: normalcy as a new goal

In this same Part 2, Denji attempts to impersonate a teacher at the high school attended by Asa, undercover, while desperately trying to live the normal life he has sought since the first chapter. Bitter irony: now that he finally has the opportunity, Denji discovers that he no longer truly knows what it means to be normal, and that his past as a traumatized hero continues to haunt him, including through the media and public attention that Chainsaw Man now receives in the series' universe.

This quest for an ordinary life, never fully achieved, nor fully abandoned, is the common thread of the entire character since his creation. It is analyzed in depth in Denji and lost innocence: analysis of an anti-hero like no other and in the role of loneliness in Denji, Aki, and Power, two articles that highlight the psychological continuity between the two parts of the manga despite their radical change in tone.

Nayuta and the legacy of the Control Devil

Among the most intriguing narrative threads of Part 2 is Nayuta, presented as the reincarnation or new form of the Chainsaw Devil, taken in and raised by Denji in an improbable paternal role for someone so emotionally immature. This relationship, tinged with touching tenderness, partly closes the loop opened by Makima's death: Denji, once manipulated and used as a tool, becomes in turn a protective figure for an entity potentially as dangerous as the one that broke him.

This reversal of roles is rich in thematic resonances, discussed in Nayuta, the new Chainsaw Devil: what do we know about her?. It also illustrates how Fujimoto wraps up certain arcs without ever fully closing them, leaving a permanent ambiguity regarding the true nature of his most powerful characters, be they devils, humans, or hybrids of both.

Kishibe, Angel Devil and the transitional figures between the two parts

If Denji, Power, and Aki form the emotional core of Part 1, several secondary characters play an essential role in continuity between the two eras of the manga. Kishibe, in particular, remains an omnipresent figure who embodies the institutional memory of the Committee and raw experience in the face of threats where young recruits consistently fail. Angel Devil, a discreet character often underestimated by readers at first, also gains depth throughout the arcs, revealing a self-sacrifice and abnegation as tragic as it is touching.

This gradual rise to prominence of a seemingly secondary character is dissected in Angel Devil, the most underestimated character in the series, and the power hierarchy among all the Fiends in the series, essential for understanding the stakes of each arc, is detailed in ranking of Fiends from weakest to strongest. To visualize this gallery of striking secondary characters, the Denji figures collection and the page the complete universe of Chainsaw Man characters allow you to find them all at a glance.

The Arcs of Part 2: Fiend Academy and the escalation towards the final conflict

Throughout Part 2, the Fiend Academy arc expands considerably: rival groups of devils and Fiends clash over opposing ideological reasons regarding the use of Chainsaw Man's power, while Asa and Yoru find themselves torn between several factions, each with their own vision of what the world should become. This climate of pervasive tension, where it's never really clear who is a loyal ally or a future traitor, strongly recalls the atmosphere of Part 1 around the Committee, while renewing it with unprecedented school and social stakes.

This arc also introduces formidable new Fiends and antagonistic figures whose moral ambiguity extends Makima's legacy without ever copying her. These newcomers do not necessarily seek to dominate the world through fear as Makima did: some act out of misguided idealism, others out of pure survival instinct, which considerably complicates the Manichaean interpretation one might initially have of this arc. The rise of this new generation of characters is discussed in several fan theories detailed in 7 fan theories that might well be true, an article that lists the most solid hypotheses about the direction the rest of the series might take.

Chainsaw Man arcs as seen by the fan community

Beyond critical analysis, there is another way to rank Chainsaw Man's arcs: popular vote. Informal surveys on social media, endless discussions on specialized forums, collaborative rankings... the fan community surprisingly often agrees on the same top contenders. The Control Devil arc almost always comes out on top, driven by the intensity of its conclusion and the emotional shock of Aki's death, closely followed by the International Assassins arc, praised for the tragic romance between Denji and Reze. The complete ranking derived from these fan votes, with its surprises and underrated arcs, is detailed in Chainsaw Man arc ranking: the fans' vote.

An interesting insight from these rankings concerns precisely the arcs that were initially less well-rated, such as the Eternity Devil, often shunned during a quick first read but frequently re-evaluated upwards during re-reads, once its importance in the development of Himeno and Power becomes evident. Conversely, some readers remain divided on the deliberately slower pace of the Academy arc in Part 2, proving that Fujimoto's gamble of slowing down the narrative to explore Asa Mitaka's life has not yet achieved unanimity, several months after its launch. Power enthusiasts, who regularly dominate these rankings across all categories, can find all her figurines in the Power Figures collection.

The impact of each arc on merchandise sales

Each Chainsaw Man arc leaves a measurable imprint on fans' purchasing habits, and trends observed in stores largely confirm community rankings. Unsurprisingly, the International Assassins arc remains one of the most profitable in terms of merchandising: the release of the film dedicated to Reze triggered a surge in demand for all items related to the character, starting with the Reze Robe Coffee Bar Elegant Edition figurine, directly inspired by her waitress outfit in the arc. The Control Devil arc, for its part, continues to drive sales of all things Makima, largely boosted by items like the Makima chibi mini-figure, which is more accessible than large statues and therefore particularly popular with new collectors.

The Bat Devil arc, despite its status as an introductory arc rather than a spectacular climax, remains surprisingly strong in sales due to the timeless popularity of Power and Denji: the Nendoroid Denji Collector's Edition 1580 is the perfect example, an accessible piece that continues to sell well several years after its initial release. Plush toys and soft items derived from Pochita and Power, gathered in the Chainsaw Man plush collection, also experience regular renewed interest, often driven by the most touching scenes of these early arcs rather than action scenes. Finally, everyday accessories like bags and satchels, available in the Chainsaw Man backpack collection, benefit from a continuous underlying effect, with each new arc subtly rekindling interest in the entire universe rather than just one isolated character. A more in-depth analysis of these purchasing trends, arc by arc, is available in which arc had the biggest impact on merchandise sales?.

Thematic continuity: what connects all the arcs

Beyond the specific events of each arc, several recurring themes run through the entire series and help to understand why Chainsaw Man functions as a coherent whole despite its spectacular shifts in tone. The first is, of course, loneliness: every main character, from Denji to Aki, Power, and now Asa, primarily seeks authentic human connection in a world that reduces them to tools or weapons. The second recurring theme is the underlying social critique that Fujimoto subtly weaves arc after arc, whether it's Denji's economic precarity, the militarization of childhood through the Committee, or the academic pressure experienced by Asa.

These themes are analyzed in detail in Chainsaw Man and Social Criticism: What Tatsuki Fujimoto Wants to Say and in The Cinematic Influences Behind Fujimoto's Style, which explains how the staging of each arc owes much to the language of auteur and horror cinema rather than traditional manga. For a more general introduction to this universe, the Chainsaw Man Universe page and the Guides and Tips guide help place each arc in its global context.

Manga and Anime: How Each Arc is Adapted to the Screen

Chainsaw Man's global popularity owes much to the anime adaptation produced by Studio MAPPA, which covered the Introduction arc up to the International Assassins arc in its first season, before the film dedicated to the Reze arc took over to delve deeper into this tragic romance in cinemas. Each arc gains an additional sound and visual dimension on screen that complements the manga reading without ever entirely replacing it, with some directorial choices differing significantly from the original work.

For fans who are torn between the two formats or who want to understand the differences between each version, Manga vs. Anime: The Differences That Change Everything and Studio MAPPA and its Work on the Anime detail the adaptation choices arc by arc. The film dedicated to the Reze arc is presented in detail in The Chainsaw Man Movie Reze Arc: What You Need to Know Before Release, and the Chainsaw Man Anime and Film page compiles all information about the adaptations, including the soundtrack detailed in The Anime Soundtrack: All the Music You Need to Know.

Wearing Your Favorite Arcs Daily

Each Chainsaw Man arc has generated its own iconic visuals, now available on a wide range of merchandise. Fans of the Introduction arc and the founding duo often prefer the Volume 7 Cover Poster Denji & Aki, while those nostalgic for the International Assassins arc tend to look for products featuring Reze or the complete trio visible on the Denji, Power & Aki Manga Style Poster. For a more discreet everyday use, the Blood Hand Graphic T-shirt Black Edition and the Pochita Kawaii Hoodie Black Edition allow fans to show their passion without overdoing it.

All these textile variations are grouped in the Chainsaw Man T-shirts, Chainsaw Man Sweatshirts and Chainsaw Man Clothing collections, while wall decorations and collectibles dedicated to each arc are brought together in Chainsaw Man Posters and Chainsaw Man Lamps. A complete comparison of the best collectibles across all ranges is available in Comparison: The Best Chainsaw Man Figures on the Market, and the Chainsaw Man Merchandise page centralizes the entire catalog by theme.

Broken down arc by arc, the story of Chainsaw Man ultimately tells one and the same thing in always renewed forms: the difficulty of remaining human in a world that constantly demands sacrifices. From Denji's impoverished introduction to Asa and Yoru's forced cohabitation, each arc adds a piece to the puzzle without ever offering a definitive answer, which undoubtedly explains why the series continues to fascinate an ever-wider audience, from first-time readers to newcomers via the anime.

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