Waganma (ワガンマ, Waganma) is the son of Narinki and later was taken hostage by the Monster Association.


Waganma strongly resembles his father, he has short light colored hair with sideburns that curl inwards and large lips. His attire consist of a light colored business suit and a polka dot bow tie.


Waganma is a curious child willing to try commoners sushi, but doesn't understand the etiquette of dining.


Human Monster SagaEdit

Monster Raid ArcEdit

Waganma and his father Narinki meet Metal Bat at a sushi restaurant, who is tasked to guard them from Garou. As Waganma was trying different foods, he kept returning the plates on the conveyor belt, which frustrates Metal Bat. Shortly a rumble occurs and Waganma was grabbed by Junior Centipede and Venus Mantrap.[1]

Metal Bat quickly disposed of the monsters and Wagnma was freed. They are later attacked by Senior Centipede and Rafflesidon who are members of the Monster Association. Waganma and his father were then knocked out by Rafflesidon gasses.[2] After Metal Bat defeated the monster, he ordered Pineapple and Mohican to take Waganma and Narinki to the hospital, however Elder Centipede emerged through the ground and attempts to kidnap him.[3] As he was being carried by the Pineapple, they were cornered by Elder Centipede, until Metal Knight came and drew the attention away from them. As the heroes carries them to safety, Rhino Wrestler, Phoenix Man and Sludge Jellyfish demands for Waganma and his father.[4] Waganma was later captured by the Monster Association and taken to their hideout.[5]

Super Fight ArcEdit

Waganma is seen tied up in chains in the Monster Association headquarters.[6]

Monster Association ArcEdit

Waganma was confined in his prison cell when Royal Ripper brought Tareo along. Waganma mentions that he was captured the day before and that he was fed only bread and water. He expresses his hunger and quickly snatches a candy from Tareo and asks if he has any more food. Waganma comments on Tareo's uselessness and the monster's stupidity for capturing him as his father is an important figure to the Hero Association. Waganma knows then that the heroes will come save him and Tareo, although Waganma has safety comes first. Waganma recruits Tareo as Waganma's lackey in exchange for all the food Tareo receives. 

Tareo and Waganma

Tareo and Waganma imprisoned.

Sludge Jellyfish goes to the cell where Tareo and Waganma are being held, and tells them there is no hope for either of them to be saved. Waganma disagrees, and says the Hero Association has plenty of heroes, and goes off to list the names of several heroes, such as Metal Bat and King. At the mention of King's name, Sludge Jellyfish becomes frightened, but confidently states the whole purpose of the Monster Association is to eliminate such heroes, and goes on to mention the Executive Members of the Monster Association, speaking in awe of their strength and remarking they must have been created by God. He states that there is no way humanity can win, and even King will fall.


  • "Waganma" is a play of words of "Wagamama" which means "spoiled"


  1. One-Punch Man Manga; Chapter 51, page 6-12
  2. One-Punch Man Manga; Chapter 54, page 2-7
  3. One-Punch Man Manga; Chapter 55, page 15-19
  4. One-Punch Man Manga; Chapter 58, page 3-13
  5. One-Punch Man Manga; Chapter 59, page 11-18
  6. One-Punch Man Manga; Chapter 74, page 4