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When humanity is in peril and must be saved, he will surely take action.[1]
— Sitch

Blast (ブラスト, Burasuto) is the S-Class Rank 1 professional hero of the Hero Association. His current whereabouts are unknown. 


Blast is a middle-aged man with a muscular build. He has spiky black hair and wears a superhero suit with a cape.

The following section contains Webcomic spoilers. You have been warned, manga-only readers.
In the webcomic, his suit's front zipper is outlined with a fiery contour.


Nothing is known of Blast's personality, as he has made no appearances in the manga.[2] He does not disclose his personal information in the Hero Association Catalog.

The following section contains Webcomic spoilers. You have been warned, manga-only readers.

Akin to Saitama, Blast considers his hero work a hobby. He also seems to have independent tendencies, advising Tatsumaki to use her own powers to defend herself rather than expecting others to save her and only showing up on his own terms (in his case, according to Sitch, when humanity is in peril).


The following section contains Webcomic spoilers. You have been warned, manga-only readers.

18 years ago, Blast saved Tatsumaki from a monster. He then encouraged Tatsumaki to use her powers when in danger.

15 years ago, Blast defeated the Ninja Village Leader and put him into a coma.

Two years ago, Blast fought Elder Centipede and brought him to the brink of death. However, the monster managed to escape underground before he could finish it off.[3]


Hero Association Saga

Alien Conquerors Arc

During the S-Class meeting, Child Emperor mentioned Blast's absence[4] which was later confirmed by Sitch who mentions his unknown whereabouts.[5]

Human Monster Saga

Monster Association Arc

Blast is mentioned in a Hero Association meeting. A staff member was frustrated at Blast's lack of activity despite being S-Class Rank 1. Sitch says that Blast cannot be ordered around but has enough faith in him that should humanity be in need of saving, he will appear.[6]

Webcomic notice This article contains webcomic spoilers. You have been warned, manga-only readers.

During the battle between the Monster Association, Hero Association, and Garou, Psykos manages to successfully take down Tatsumaki and mentions that it was naive for the heroes to be dependent solely on Tatsumaki to take down the Monster Association. Psykos says that they should have brought along Blast and Metal Knight to their hero team in which she refers them as bishop and rook respectively. Even so, she thinks that they would have not helped.

Abilities and Powers

Being the highest ranked hero of the Hero Association, it can be presumed that Blast is a very powerful S-Class hero. Fubuki mentions that Blast is "the one at the top of all heroes" during her talk with Saitama in his apartment, putting Blast alongside King in terms of power.[7] Sitch also mentions Blast would only present himself if humanity is in peril.[8]

Blast was able to bring Elder Centipede—a Dragon Level threat strong enough to combat the likes of Bang, Bomb and Genos simultaneously—to the brink of death, although he was smaller and as such presumably weaker when he first fought Blast.[9] Despite this, Psykos believed that Blast could still defeat Elder Centipede even in his current state.

Fubuki speculates in the databook that Blast is stronger than King, can shoot lasers from his eyes and rules over psychic powers and the ability to command trillions of robots. She hypothesizes that he could beat the rest of the S-Class all at once.[10]

Webcomic notice This article contains webcomic spoilers. You have been warned, manga-only readers.

Blast also defeated the leader of the ninja village, who is regarded as the most powerful ninja to ever exist, and put him in a coma for 15 years.


Webcomic notice This article contains webcomic spoilers. You have been warned, manga-only readers.
  • "You sloppily formed your team, without Blast and Metal Knight. You naively thought Tornado alone could win this war? You started this game without the bishop and rook. Though, I don't think having the bishop and rook would've helped you much." - Psykos
  • "Because...Bla-...On second thought, No."- Tatsumaki
  • (To Tatsumaki after saving her) "When the time comes, don't go expecting someone to come save you."
  • (To Tatsumaki about being a hero) "...I guess this is more of a hobby."


  • Blast Original

    Blast's previous debut in the manga.

    Blast's debut in the manga was originally less ambiguous, clearly showing a long head of hair and a cape. However, in the tankōbon release of the manga his appearance was changed to be even more mysterious and equivocal.[11]
  • The rumor that he can shoot lazers from his eyes and command an army of robots is most likely a reference to Superman.
Webcomic notice This article contains webcomic spoilers. You have been warned, manga-only readers.
  • Blast was the reason Tatsumaki became a hero.
  • Blast is the first known human to perform Heroic acts in the series.


  1. One-Punch Man Manga; Chapter 85, page 5
  2. One-Punch Man Manga; Chapter 29, page 20
  3. One-Punch Man Manga; Chapter 84, page 116-117
  4. One-Punch Man Manga; Chapter 29, page 11
  5. One-Punch Man Manga; Chapter 30, page 2
  6. One-Punch Man Manga; Chapter 85, page 4
  7. One-Punch Man Manga; Chapter 44, page 13
  8. One-Punch Man Manga; Chapter 85, page 5
  9. One-Punch Man Manga; Chapter 84, page 62
  10. One-Punch Man Encyclopedia; One-Punch Man: Hero Perfection, page 79
  11. One-Punch Man Manga; Volume 17


Hero Association
S-Class 1. Blast • 2. Tornado of Terror/Tatsumaki • 3. Silver Fang/Bang • 4. Atomic Samurai/Kamikaze • 5. Child Emperor • 6. Metal Knight/Bofoi • 7. King • 8. Zombieman • 9. Drive Knight • 10. Pig God • 11. Superalloy Darkshine • 12. Watchdog Man • 13. Flashy Flash • 14. Demon Cyborg/Genos • 15. Metal Bat/Bad • 16. Tanktop Master (Tank Topper Army) • 17. Puri-Puri Prisoner
A-Class 1. Sweet Mask • 2. Iaian • 3. Okamaitachi • 4. Bushidrill • 5. Heavy Tank Loincloth • 6. Blue Fire • 7. Magic Trick Man • 8. Death Gatling • 9. Tanktop Vegetarian • 10. Stinger • 11. Twin Tail • 13. Great Philosopher • 16. Butterfly DX • 17. Lightning Genji/Genji • 19. Lightning Max/Max • 22. One Shotter • 24. Green • 25. Crescent Eyebroll • 26. Golden Ball • 27. Smile Man • 28. Spring Mustachio • 29. Narcisstoic • 30. Peach Terry • 31. Forte • 32. Shadow Ring • 33. Doll Master • 34. Feather • 35. Air • 36. Chain'n'toad • 37. SneckHeavy Kong
B-Class 1. Blizzard of Hell/Fubuki (The Blizzard Group) • 2. Eyelashes • 3. Mountain Ape • 6. Wild Horn • 7. Caped Baldy/Saitama • 20. Glasses • 25. Pink Hornet • 29. Double Hole • 39. Smell Master • 39. Reclusamurai • 43. Gun Gun • 49. Butcher • 50. Jet Nice Guy • 60. Needle Star • 65. Piko • 69. Crying Man • 70. Trap Tengu • 71. Mizuki • 74. Lily of the Three Section Staff/Lily • 77. Bone • 81. Tanktop Black Hole • 93. Mushroom • 99. ShooterDarkness BladePineapple
C-Class 1. Mumen Rider • 3. Strange Binding Shell • 13. Tanktop Tiger • 22. D-Pad • 40. Funeral Suspenders • 66. Food Battler Futoshi • 85. Battery Man • 89. Red Muffler • 111. Armored Chief Clerk • 133. Gearsper • 141. Gasmask Cowboy • 174. Grave Eight • 179. Ecolo G • 203. Monocross • 221. Dynamite Man • 225. Angry Man • 283. Horse-Bone • 295. Studless • 300. Poison • 331. Bunbunman • 347. Hyottoko • 359. Saturn Man • 385. Red NoseMohicanCherion (Soda Pop Boys) • SwimWater GunShoulderpadsHacker NetMeat PounderRabbit
Undetermined Class Tanktop GirlTanktop RockabillyTanktop RacerTanktop Al DenteTanktop SwimmerTanktop JungleTanktop MaskTanktop HatterPandaman
Ex-Heroes All Back-ManGrad School GraduateSerial Bomber
Staff Members AgoniBearded WorkerBespectacled WorkerC Branch OperatorConsole OperatorExecutive GirlGuichesMain Branch OperatorMcCoyNarinkiSekingarShelter Nr. 7 GirlSitchSome Important GuySpecial Committee GirlZ Branch Committee GirlZ Branch OperatorZeimeet
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