One-Punch Man Wiki

Master Joe (マスター・ジョー, Masuta Jō) was a tiger level monster who was the Treasurer of the Monster Association (怪人協会金庫番).

Appearance[]

A human sized monster who wore a hoodie with "Joe" written on it and a mask-like face. On his face he had one eye and a mouth, they joined together to look like a key hole. He had a long black tail with three hoops at the end, resembling a key handle. He carried many keys with him, one resembling a skull that he wore as a chain around his neck, and multiple key chains attached to his waist. He also had black shorts and running shoes.

Plot[]

Human Monster Saga[]

Monster Association Arc[]

Master Joe is present during the raid on the Monster Association Headquarters, standing guard near the vault with a group of monsters. They are all killed by Atomic Samurai's disciples and the remnants of Narinki's Private Squad, so he rushes to open a large safe. He gets shot by Tongara, but manages to open Evil Natural Water's tank and release it to wreak havoc. He is killed by Mad Doctor Fish in the ensuing chaos.

Abilities[]

  • Shapeshifting: Master Joe had the ability to turn his arm into a key. He used this to unlock the room containing Evil Natural Water.

Trivia[]

  • His name is a pun based on the Japanese word for key: 錠 ()
  • His name also appears to be a reference to the popular lock brand, Master.

Site Navigation[]

Monster Association
Leaders
Executives Black SpermElder Centipede Evil Natural Water Fuhrer Ugly Gouketsu Gums Homeless Emperor Nyan Overgrown Rover
Dragon
Demon Awakened Cockroach Baquma Bug God Building Booper Devil Long Hair *Do-S *Eyesight Face Ripper Fist Fight Djinn Free Hugger G5 Hundred-Eyes Octopus Rafflesidon Rhino Wrestler Royal Ripper Senior Centipede Showerhead Super Mouse The Great Food Tub The Three Crows Unihorn Vampire (Pureblood) 
Tiger
Unknown Benpatsu *Choze Evil Eggs Evil Eye Gale Goddess Glasses Gyoffrey Hamukichi *Haragiri Hellfire Junior Centipede ManakoPlatinum Sperm Raptora Reptera *Rosie Sword Devil Executioner The Three Tempest BrothersVenus Mantrap Volten *
Mysterious Beings
Dragon (or higher) Boros Byakko *Genbu *Orochi 
Dragon
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Tiger
Wolf Beer BelleeHimawari Hotdog Messenger of the Seafolk Piggy Bancon Tongue StretcherShiverhuahua 
Less than Wolf
Unknown Alien Seer *Ancient King Angry Grandpa Autumn Phantom Red Golden-ringed Dragonfly *Benpatsu *Choze Cruel Dragon DarkDark Matter Gunner Dirt Earthworm Eagle Empty VoidEnamel Evil Eggs Evil Eye Evil Natural Water Falcon Fish of DarknessGale Giant Salamander Gigakigan GodGoddess Glasses Gyoffrey Hamukichi *Haragiri Hawk Hellfire Junior Centipede Kite Lord Great White Manako *Men's Esthetician Man *Platinum Sperm Rosie Raptora Reptera *Rangor Research Hybrid Monster Sage Centipede Sea SlugSnake-type monster Super Custom YO649Z Mk. II Suppon Sword Devil Executioner The Mad CyborgThe Three Tempest BrothersTV Junkyard Monster Venus Mantrap Volten *