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Race Human
Gender Male Male
Status Alive
Occupation Martial Artist
Manga Debut Chapter 52 (First mentioned)
Chapter 60

Mentai (メンタイ, Mentai) is a Martial Artist and user of the Spice Fist.


Mentai is a young man with light-colored hair and eyes. He has a small X-shaped scar on his right cheek and a band-aid over his nose. He wears a black short sleeved shirt with fur on his collar and wrist.


Human Monster SagaEdit

Monster Raid ArcEdit

Mentai is participating in the Super Fight Tournament in C-City at the C-City Super Stadium. This is the sixth time Mentai has participated in the tournament.[1]

While watching the match between Max and Suiryu, he was shocked by how easily the latter defeated his opponent.[2] He was beaten to near death by Choze in his round in the tournament.[3]

Monster Association ArcEdit

He is later seen watching the final match between Charanko (who is Saitama in disguise) and Suiryu with Lin Lin, Sour Facee and Zakos, while recovering from his injuries.[4]

Abilities and PowersEdit

Not much is known about Mentai's strength.

Fighting StyleEdit

Spice Fist (香辛拳, Kōshin Ken): Has not been shown yet. He uses powerful spices on his fists to blind his foes.[5]


  • His name is from "Mentaiko" (明太子), seasoned cod roe. His spice ability is possibly referring to "Karashi Mentaiko" (辛子明太子), Spiced pollack roe.


  1. One-Punch Man Manga; Chapter 60, page 7
  2. One-Punch Man Manga; Chapter 62, page 15
  3. One-Punch Man Manga; Chapter 63, page 6
  4. One-Punch Man Manga; Chapter 70, page 17
  5. One-Punch Man Manga; Chapter 60, page 7


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