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Red Muffler (赤マフ, Aka Mafu) is the C-Class Rank 89 professional hero of the Hero Association.


Red Muffler is a young man with short light-colored hair. He wears armor featuring a chest plate, shoulder pads and shin guards with a star on the chest plate and shoulder pads. He also wears a large red scarf around his neck.


Red Muffler is a realistic young man, and understands the limits of his abilities.


Cicida Larva Attack[]

Red Muffler defeated

Red Muffler attempted to fight the 170,000-Year-Old Cicada Nymph alongside Grad School Graduate and Darkness Blade. The three then later arrived at Shelter Nr. 7 after having failed in defeating the monster.[3]


Human Monster Saga[]

Monster Raid Arc[]

Red Muffler is one of many heroes who attempts to defeat Hundred-Eyes Octopus before Flashy Flash shows up. He appears to fight Hundred-Eyes Octopus but is nearly crushed before being saved by Bone.

Appearances in Other Media[]



He and the other heroes try to stop Jumping Spider together but are easily blown away by the creature. As he is about to be eaten, Bang arrives and saves him.[4]

Pork Cutlet Bowl[]

Red Muffler was among the many heroes summoned by McCoy to combat the monster that was devastating the Z-City police station. He arrives at the scene late, after Saitama has already killed the monster.[5]

Abilities and Powers[]

Given his rank, it is safe to assume that he is fairly strong by C-Class standards. His power level is used as the control for Child Emperor's device and is set to 100. However, the fact he has lost every fight he's been in, even with the assistance of B-Class and A-Class heroes implies that he's still a very weak fighter.

Red Muffler's Armor

Physical Abilities[]

Enhanced Speed and Reflexes: Red Muffler has been shown to be quick on his feet, as seen when fighting Jumping Spider.[6]

Fighting Style[]

  • Red Meteoric Kick (赤い彗星キック, Akai Sōsei Kikku): A flying kick delivered at the enemy. Its power is unknown, as Jumping Spider dodged before the attack could connect.[7]

Hero Rating[]

Red Muffler's rating determined by the Hero Association[1]:

Ability Type Stamina Intelligence Justice Endurance Power Popularity Effectiveness Fighting Ability Total
Physical 2 4 3 2 3 3 2 3 22

Major Battles[]

Participants Chapter(s) Episode(s) Result
Red Muffler, Grad School Graduate and Darkness Blade vs 170,000-Year-Old Cicada Larva Summer None Loss
Red Muffler, Child Emperor, Darkness Blade, Stinger and Great Philosopher vs. Jumping Spider Numbers None Interrupted by Saitama Group


  • He is named after the red scarf he wears in order to distinguish himself as a hero.[1]
  • In the 2017 One Punch Man Halloween cover, he was depicted cosplaying Red Riding Hood but while wearing his signature red scarf. He holds a vine basket containing a bottle, and has a perplexed or scared look due to Crablante, who is also cosplaying Red Riding Hood, being next to him.


  1. 1.0 1.1 1.2 1.3 1.4 One-Punch Man Encyclopedia; One-Punch Man: Hero Encyclopedia, page 25
  2. One-Punch Man Omake; Numbers
  3. One-Punch Man Omake; Summer
  4. One-Punch Man Omake; Numbers
  5. One-Punch Man Omake; Pork Cutlet Bowl
  6. One-Punch Man Omake; Numbers
  7. One-Punch Man Omake; Numbers


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
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. Captain Mizuki/Mizuki • 74. Lily of the Three Section Staff/Lily • 77. Bone • 81. Tanktop Black Hole • 93. Mushroom • 99. ShooterDarkness BladePineapple
Undetermined Class GunmaTanktop GirlTanktop RockabillyTanktop RacerTanktop Al DenteTanktop SwimmerTanktop JungleTanktop MaskTanktop HatterTanktop DoctorPandaman
Staff Members AgoniBushoC Branch OperatorConsole OperatorExmaGuichesJinzurenMain Branch OperatorMcCoyNarinkiSekingarShelter Nr. 7 GirlSitchSome Important GuySpecial Committee GirlZ Branch Committee GirlZ Branch OperatorZeimeet