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Maiko Plasma (舞妓プラズマ, Maiko Purazuma) was one of the two Monster Association monsters assigned to attack D-City.


Maiko Plasma's appearance was that of a Maiko; with her black hair tied up in a traditional Japanese way with many decorative hair clips with stars, clouds and thunderbolts. As a Maiko, she wore a long kimono called a hikizuri, with clouds and thunderbolts printed on it, a black obi sash with two belts tied over it and wedge-heeled wooden sandals. Around her, she had eight Tomoe drums attached to her back and carried two drum sticks in her hand.

When in her High Voltage Mode, her clothing becomes more modern. She wears punk boots and her kimono is considerably shorter. Her drums are no longer attached to her, but are simply free floating.[1]


Maiko Plasma seemed rather calm and acknowledged that there are more powerful beings than her in the world, a trait very few low threat level monsters have.[2]


Electric Catfish Man[]

Maiko Plasma is the implied wife of Electric Catfish Man and they share a mutual respect for each other.[3]


Human Monster Saga[]

Monster Raid Arc[]

Maiko Plasma and Electric Catfish Man go to attack the recently rebuilt D-City. At the city, they encounter Lightning Genji, an A-Class hero. Unfortunately for Lightning Genji, their attributes nullify his stun attacks.[4] The monster pair eventually defeat Lightning Genji.[5]

Monster Association Arc[]

In the Monster Association, she and Electric Catfish Man are discussing their victory over Lightning Genji and remarking that it was thanks to Gyoro Gyoro and his carefully-planned choice of who they would fight that the pair won against the A-Class hero.[6]

Later, Maiko Plasma, alongside other Tiger-level monsters including Electric Catfish Man, are attacking Puri-Puri Prisoner. When their attacks have no effect, they attempt to flee only to run into Baquma, a Demon-level monster resembling an elephant. Baquma tells them not to retreat, to which the monsters angrily ask him to fight the S-Class hero in their place. Baquma agrees and subsequently consumes them all to gain their powers. During the consumption, her partner, Electric Catfish Man, manages to escape on his own and tries to save her from being sucked in Baquma, however he fails. Shortly afterwards, she and the other monsters who were absorbed by Baquma are freed when Puri-Puri Prisoner defeats the elephant-like monster. As she is released from Baquma, Electric Catfish Man catches her and leaves the scene. While they are leaving, Maiko Plasma wonders to him if they would be punished for fleeing, which her partner responds that it does not matter anymore and something like a real big earthquake is coming.

Abilities & Powers[]

Maiko Plasma during combat

As a Tiger level-threat, Maiko Plasma was a threat to the lives of a great number of people. Despite her disaster level, she was able to defeat Lightning Genji with the help of Electric Catfish Man, albeit with both of them having a type advantage over the hero.

Supernatural Abilities[]

Electricity Manipulation: As an electricity-based Mysterious Being, Maiko Plasma has the ability to generate several bolts of electricity. Her electricity is potent enough to damage the equipment used by Lightning Genji, and was generally pink in color.

Physical Abilities[]

Electricity Resistance: Maiko Plasma was unfazed by any of the attacks from Lightning Genji's electric stun batons.

Maiko Plasma in her High Voltage Mode

Fighting Style[]

Supportive Combatant: Maiko Plasma mostly takes on a supporting role in combat, sitting in the back and controlling combat area with her lightning bolts. She relies on Electric Catfish Man to do most of the damage.

High Voltage Mode (ハイボルテージモード, Hai Borutēji Mōdo): Maiko Plasma changes her appearance to increase the amount of electricity she emits.[7]

  • Love Lightning Session (愛のライトニングセッション, Ai no Raitoningu Sesshon): Maiko Plasma uses her electricity to power-up Electric Catfish Man's attacks.


Tomoe Drums: Maiko Plasma possesses eight Tomoe drums that shot a bolt of lightning when she hit them with her drum sticks.[8]

Major Battles[]

Participants Chapter(s) Episode(s) Result
Maiko Plasma and Electric Catfish Man vs. Lightning Genji 59, 61 17 Win
Maiko Plasma, Electric Catfish Man and various monsters vs. Puri-Puri Prisoner 110 None Interrupted by Baquma


  • A Maiko (舞子 or 舞妓) is an apprentice geisha, while Plasma is one of the four fundamental states of matter.
  • Maiko Plasma is a pun referring to Mycoplasma from Mycoplasma Pneumonia.
  • The drums attached to her are likely a reference to Raijin, a Shinto storm god, who is often depicted with having similar drums attached to him to create thunder.
  • The name Maiko Plasma is a possible reference to the mangaka Mitsuhisa Kuji.


  1. One-Punch Man Manga; Chapter 110, page 2-3
  2. One-Punch Man Manga; Chapter 59, page 22
  3. One-Punch Man Manga; Chapter 110
  4. One-Punch Man Manga; Chapter 59, page 21
  5. One-Punch Man Manga; Chapter 61, page 21
  6. One-Punch Man Manga; Chapter 90, page 31
  7. One-Punch Man Manga; Chapter 110, page 2
  8. One-Punch Man Manga; Chapter 61, page 19


Monster Association
Executives Black Sperm *Evil Natural Water *Homeless Emperor Fuhrer Ugly Gums Overgrown RoverNyan Elder Centipede Gouketsu 
Demon Awakened Cockroach Baquma Bug God Building Booper Devil Long Hair Do-S *Eyesight G5 Hundred-Eyes Octopus Vampire (Pureblood) Rafflesidon Royal Ripper Face Ripper Fist Fight Djinn Free Hugger Rhino Wrestler The Three Crows Senior Centipede Showerhead Super Mouse Unihorn The Great Food Tub 
Unknown Gyoffrey Goddess Glasses Venus Mantrap Junior Centipede Haragiri Rosie Choze Benpatsu *Hamukichi *Volten *Evil Eye Gale Hellfire Evil Eggs ManakoPlatinum Sperm Sword Devil Executioner Raptora *Reptera
Mysterious Beings
Dragon (or higher) Boros Orochi *
Demon 170,000-Year-Old Cicada Larva 170,000-Year-Old Cicada Adult Armored GorillaAwakened Cockroach Baquma Beast King Bruinado Bug God Building Booper Deep Sea King Demonic Fan Devil Long Hair *Do-S *Eyesight Face Ripper Fist Fight Djinn Free Hugger G4 G5 Game-Berus Giant Crow Grizzly Nyah Hundred-Eyes Octopus Jumping Spider Macho Daikon Mosquito Girl Rafflesidon Rhino Wrestler Royal Ripper Scaledon Senior Centipede Showerhead Sky King Subterranean King Super Mouse Surprise-Attack Plum The Great Food Tub The Three Crows Unihorn Vampire (Pureblood) 
Wolf Himawari Hotdog Messenger of the Seafolk Piggy Bancon Tongue Stretcher
Less than Wolf
Unknown Alien Seer *Ancient King Angry Grandpa Autumn Phantom Red Golden-ringed Dragonfly *Benpatsu *Choze DarkDark Matter Gunner Eagle Enamel Evil Eggs Evil Eye Evil Natural Water *Falcon Fish of DarknessGale Giant Salamander Gigakigan Goddess Glasses Gyoffrey Hamukichi *Haragiri Hawk Hellfire Junior Centipede Kite Lord Great White ManakoMen's Esthetician Man *Platinum Sperm Rosie Raptora *RepteraSage Centipede Suppon Sword Devil Executioner Venus Mantrap Volten *