Spoiler Alert: This recap contains detailed plot summaries and may reveal key story events.
TL;DR
Chainsaw Man season 1 is a blood-soaked, irreverent ride through a world where devils born from human fears are hunted by government-sanctioned Devil Hunters. Denji, a broke teenager with zero ambitions beyond eating good food and touching a girl, fuses with his pet Chainsaw Devil and gets recruited into Public Safety’s most dangerous division. What follows is a wild mix of grotesque action, pitch-black comedy, and surprisingly genuine emotional beats — all wrapped in MAPPA’s cinematic production that gave every single episode a unique ending sequence. If you want a shonen that actively refuses to be a typical shonen, this is it.
Season Summary
This Chainsaw Man season 1 recap covers the complete first arc of Tatsuki Fujimoto’s manga adaptation — from Denji’s rock-bottom origins to his first major devil hunt as a Public Safety rookie.
Denji’s Rebirth & Recruitment (Episodes 1–2)
Denji’s life is about as bad as it gets. Orphaned, drowning in his dead father’s yakuza debt, he survives by doing odd jobs — including hunting devils — alongside Pochita, a small Chainsaw Devil who became his only companion. Denji’s dreams are pathetically simple: eat real food, sleep in a real bed, maybe find a girlfriend someday. He’s sold organs and teeth just to stay alive.
When the yakuza betray him — having made a deal with the Zombie Devil — Denji is killed and dismembered. But Pochita, in a final act of loyalty, merges with Denji’s body to become his heart. Denji rises as Chainsaw Man, ripping through an army of zombies in one of the most explosive debut episodes in anime history.
The carnage draws the attention of Makima, a high-ranking Public Safety Devil Hunter with an unsettling calm about her. She gives Denji a choice: be killed as a devil, or work for her as her dog. For a kid who’s never had anyone be kind to him, Makima’s offer of food and shelter is enough. Denji becomes a government Devil Hunter, motivated entirely by Makima’s promise — and her attention.
Public Safety & the Bat Devil (Episodes 3–5)
Denji is placed under Aki Hayakawa, a serious, revenge-driven Devil Hunter who immediately clashes with Denji’s shallow motivations. Aki literally beats Denji in an alley to try to make him quit — only to discover that Denji can take a beating and simply doesn’t care. Their dynamic is oil and water: Aki fights devils because they killed his family, Denji fights because Makima told him to.
Then comes Power — a Blood Fiend (a devil possessing a human corpse) assigned as Denji’s partner. She’s loud, selfish, a compulsive liar, and utterly chaotic. The unlikely trio of Denji, Aki, and Power forms the emotional core of the series, forced to cohabitate in Aki’s apartment in scenes that play like a dysfunctional family sitcom.
Power manipulates Denji into helping her rescue her pet cat Meowy from the Bat Devil, promising physical favors she has no intention of delivering. The Bat Devil encounter is Denji’s first real test — he gets swallowed whole, chainsaws his way out from inside the devil, and saves both Power and Meowy. It’s disgusting, triumphant, and perfectly Chainsaw Man.
The Eternity Devil & Squad Dynamics (Episodes 6–8)
Public Safety sends a team — including Denji, Power, Aki, and several rookies like Himeno, Arai, and Kobeni — into a hotel where the Eternity Devil has trapped them in an infinite loop of the eighth floor. The devil offers a deal: deliver Denji’s heart, and everyone goes free.
The psychological pressure cracks the team. Kobeni, already anxiety-ridden, snaps and tries to kill Denji herself. It’s a claustrophobic, tense arc that reveals how the world views Denji — as a tool, an asset, or a threat, but rarely as a person.
Denji’s solution is quintessentially him: he dives headfirst into the Eternity Devil’s mouth and just keeps fighting. For three straight days he chainsaws, gets eaten, regenerates, and chainsaws again until the devil begs for death. It’s not strategy. It’s pure, stubborn endurance — and it works. The aftermath gives us the famous drinking party scene, where Himeno kisses Denji and promptly vomits into his mouth. Romance in Chainsaw Man is never pretty.
Makima’s Web & the Katana Man (Episodes 9–12)
The season’s final act shifts tone dramatically. A gun devil conspiracy emerges — someone is collecting Gun Devil fragments, and an organized attack on Public Safety Devil Hunters begins across Japan.
Major Spoiler
Himeno is killed during the ambush by the Katana Man (Samurai Sword), a human-devil hybrid like Denji, working alongside Akane Sawatari and the Snake Devil. Himeno uses her full contract with the Ghost Devil to try to save Aki, sacrificing her entire body in the process. She vanishes, leaving nothing behind but her clothes.The Katana Man — a yakuza enforcer whose grandfather Denji killed — cuts Denji in half. Denji is captured, Power barely escapes with a traumatized Kobeni, and Aki is left critically injured. It’s a devastating mid-season gut punch that proves no one is safe.
Makima, meanwhile, operates on an entirely different level. She orchestrates a counterattack with chilling efficiency, using dozens of convicted criminals in a ritualistic mass killing to remotely assassinate enemies from a shrine. The scene is deeply unsettling — Makima blindfolded, calmly reciting names as people die hundreds of miles away. Whatever she is, she’s far more than a normal Devil Hunter.
The season finale delivers a cathartic rematch. Denji and Aki storm the Katana Man’s compound. Aki, now wielding the Future Devil’s power (gained in a creepy but hilarious contract negotiation), fights alongside the team. Denji defeats Katana Man in a brutal one-on-one, and in a moment of pure Denji logic, he and Aki take turns kicking the unconscious villain in the groin as payback — a contest to see who can make him scream louder. It’s juvenile, vengeful, and oddly cathartic.
The season closes with Makima revealing the broader mission: the Gun Devil, a catastrophic entity that killed 1.2 million people in five minutes, is the ultimate target. Denji barely understands the stakes. He just wants Makima to notice him.
Highlights & Must-See Moments
- Episode 1: “Dog & Chainsaw” — Denji’s resurrection and zombie massacre is one of the greatest anime pilot episodes ever produced, setting the tone for everything to come.
- Episode 7: “The Taste of a Kiss” — The Eternity Devil fight peaks with Denji’s three-day chainsaw rampage, a sequence of pure unhinged endurance that defines his fighting philosophy.
- Episode 8: “Gunfire” — The ambush on Public Safety is sudden, violent, and permanently changes the stakes. The vomit-kiss drinking scene beforehand makes the whiplash even harder.
- Episode 9: “From Kyoto” — Makima’s shrine massacre is the single most unsettling scene in the season, reframing her character entirely without a word of explanation.
- Episode 12: “Katana vs. Chainsaw” — The final fight delivers spectacle, but the groin-kicking contest afterward is the scene everyone remembers.
Our Take
Chainsaw Man season 1 succeeds because it refuses to play by shonen rules while still delivering everything shonen fans want. Denji isn’t fighting for justice or friendship — he’s fighting because a pretty woman told him to and he wants to eat steak. That honesty makes him weirdly relatable in a genre full of noble heroes. MAPPA’s decision to give each episode a unique ending sequence (12 different EDs by 12 different artists) reflects the show’s creative ambition, and Kensuke Ushio’s sound design makes every chainsaw rev feel visceral.
The series draws natural comparisons to Jujutsu Kaisen and Dorohedoro in its dark-action-comedy blend, but Chainsaw Man’s emotional register is uniquely Fujimoto — mixing crude humor and genuine pathos in ways that shouldn’t work but absolutely do. Makima remains one of anime’s most compelling enigmas, and the Denji-Aki-Power trio is the dysfunctional found family you didn’t know you needed. The season covers only a fraction of the manga, and the best is yet to come.
Rating: 8.5 / 10 — A stylish, subversive debut that redefines what a shonen action anime can feel like.
Where to Watch & Read
- Watch on Crunchyroll (subbed and dubbed)
- Watch on Amazon Prime Video (select regions)
- Watch on Hulu (subbed)
- Read the manga Chainsaw Man by Tatsuki Fujimoto on Amazon — the anime covers roughly chapters 1–38 of Part 1
- Chainsaw Man Buddy Stories (light novel spin-off with side character backstories) on Amazon