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Haragiri (ハラギリ, Haragiri) was a swordmaster and a member of the Council of Swordmasters before deciding to join the Monster Association. He was killed by Atomic Samurai.[2]


Haragiri as a human

Haragiri as a human

As a human, he had his long dark hair slick back and a prominent widow peak. He appeared to be a middle-aged man, around 40 years old. His attire consisted of a sleeveless haori over his kimono. He carried a katana sheathed away in a scabbard found on the left side of his hip. When in his monster form, his skin became darker and a third eye appeared on his forehead. His teeth became sharper and his hair turned lighter in color. Additionally, it appeared that his hair turned into large vines that stuck out, and several veins pulsed across his skin.


Haragiri was a very blithe individual who was mostly concerned about improving his swordsmanship. He believed the sole purpose of the Council of Swordmasters is to improve their swordsmanship, and that anything else, such as meetings about the hero hunter Garou, were irrelevant and distracted them from their original mission. In exchange for his lust for power, he completely abandoned his humanity and joined the Monster Association. After becoming a Mysterious Being, he became very arrogant, as he believed that he could easily kill all the other members of the Council of Swordmasters, including Atomic Samurai, whom is one of the highest-ranked S-Class heroes.


Human Monster SagaEdit

Super Fight ArcEdit

Kamikaze slashes Haragiri to pieces

Kamikaze slashes Haragiri to pieces

During the meeting of the Council of Swordmasters, while Atomic Samurai was thanking the other members for their support in chasing down the "Human Monster", Garou, Haragiri interrupts Atomic Samurai and reveals that he joined the Monster Association who offered, in return for giving up his humanity, a power far beyond that which he currently possessed. He agreed and ingested a Monster Cell, turning himself into a mysterious being.

During the meeting of the Council of Swordmasters, he threatened to kill all members unless they ate one of the Monster Cells and "monsterize" themselves. He was about to kill Atomic Samurai regardless, as he was a target of the Monster Association, after giving them 3 seconds to eat one of the Monster Cells. He prepares to slash the hero's neck, but before his blade could reach the hero, Atomic Samurai had already unsheathed his sword and cut him into pieces with his Atomic Slash, ending the monster's life.[3]

Abilities and PowersEdit

Haragiri was a member of the Council of Swordmasters while human and thus had masterful and high skills in swordsmanship. His transformation into a Mysterious Being greatly heightened his power,[4] and due to his previous ability to cut faster-than-sound, it can be assumed that he was at least at the disaster level of Demon. Despite his considerable increase in power, he was no match to the likes of Atomic Samurai.

Physical AbilitiesEdit


Haragiri begins to transform

Transformation: Haragiri gained the ability to transform his physical form after becoming a monster, as he ate a monster cell prior to the meeting with the Council of Swordmasters, yet only when presenting them to the other members did he reveal his monster form. 

Immense Speed and Reflexes: Prior to his transformation into a monster, Haragiri claimed he could draw his sword at speeds faster than sound.[5] After his transformation, this already astonishing speed was increased even further, yet he still wasn't nearly fast enough to react to Atomic Samurai.

Enhanced Strength: Due to the fact that he was a member of the Council of Swordmasters, it can be assumed that he had impressive strength, which only increased following his transformation.

Fighting StyleEdit

Master Swordsman: As a member of the Council of Swordmasters, Haragiri was no doubt a powerful swordsman; though was completely outmatched by Atomic Samurai.


Katana: Haragiri was shown to possess a katana.

Major BattlesEdit

Participants Chapter(s) Episode(s) Result
Haragiri vs. Atomic Samurai 69 19 Haragiri is killed


  • "Haragiri" is similar to the word harakiri, a ritual suicide originally performed by samurai. This is probably a reference to how he let his human self die in exchange for greater power as a monster.
  • Haragiri is among the few monsters of human origin who can access their human form, the others being Gale Wind, Hellfire Flame and Surprise-Attack Plum.


  2. One-Punch Man Manga and Anime; Chapter 69, and Episode 19
  3. One-Punch Man Manga; Chapter 69, page 13-25
  4. One-Punch Man Manga; Chapter 69, page 17
  5. One-Punch Man Manga; Chapter 69, page 21


Monster Association
Leaders OrochiPsykos
Executives Black SpermEvil Natural WaterHomeless EmperorFuhrer UglyGumsOvergrown RoverNyan Elder Centipede Gouketsu 
Dragon Gale Wind Hellfire Flame Phoenix Man 
Demon Awakened Cockroach Bug God Devil Long Hair Do-S G5 Hundred-Eyes Octopus Vampire (Pureblood) Rafflesidon Royal Ripper Senior Centipede Face Ripper Fist Fight Djinn Free Hugger Rhino Wrestler The Three Crows Showerhead Super Mouse Unihorn The Great Food Tub Vacuuma 
Tiger Destrochloridium Electric Catfish Man Mad Doctor Fish Maiko Plasma Marshall Gorilla Sludge Jellyfish 
Unknown Eyesight Gyoffrey Goddess Glasses Venus Mantrap Junior Centipede Haragiri Rosie Choze Benpatsu Hamukichi Volten Evil Eye Gale Hellfire Evil Eggs Sword Devil Executioner 
Mysterious Beings
Unaffiliated Crablante Vaccine Man Marugori Piggy Bancon Giant Snowman Himawari Personification Of A Light Pull Cord Kombu Infinity170,000-Year-Old Cicada Larva 170,000-Year-Old Cicada Adult Demonic Fan Delorean Alien SeerThree-Eyed Ghost Surprise-Attack Plum Tongue StretcherGiant Crow Octopus Claw Man Grizzly Nyah Suppon Gigakigan Hotdog Game-Berus Autumn Phantom Red Golden-ringed DragonflyJumping Spider Scaledon Enamel Black Roast Macho Daikon Withered Sprout Twin-Headed Tsuchinoko Man-Eating Capybara Pot Bellee Kenzan Rat Pesky Clown
Native Tribes Forest Tribe (Forest King ) • Seafolk (Deep Sea King Lord Great White Messenger of the Seafolk ) • Skyfolk (Sky King Eagle Hawk Falcon Kite ) • Subterranean People (Subterranean King ) • Terror Lizard Clan ( Ancient King )
Dark Matter Thieves Boros Geryuganshoop Melzargard Groribas Dark Matter Gunner 
The Organization G4 G5 
House of Evolution Carnage Kabuto Beast King Armored GorillaKamakyuri Ground Dragon Frog Man Slugerous Mosquito Girl 
Anime-Only Mysterious Beings Super Custom YO649Z Mk. II Fish of Darkness *Pluton Men's Esthetician Man *Dirt Earthworm Japanese Giant Salamander Lord of Mountains TV Junkyard Monster Urn Eel Crazy Brown Bear 
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