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The Subterranean King (地底王, Chitēō) was the king of the Subterranean People. He led his people from below the crust to conquer the surface above. He was killed by Saitama.[2]


Like the Subterranean People, the Subterranean King had a humanoid appearance but was about double the size of the average human being. He was covered with black, armor-like pieces, with blue lava running in the space between them. He had three narrow eyes and four arms, each with three fingers. In each of his hands, he carried a red magma blade.

In the manga, his armor was brown in coloration with yellow/reddish magma swimming through his body which matches the commonly known colors of an active volcano. His blades also have the same color as magma.


The Subterranean King seemed to be rather confident in his abilities but was defeated almost instantly.


Introduction Saga[]

Saitama Introduction Arc[]

The Subterranean King being killed by Saitama

Saitama has a dream where he is attacked by the Subterranean People, and after a hard battle where he defeats them all the Subterranean King shows up for one last fight. Right before they start to fight, Saitama's dream ends. Upon waking up Saitama notices that the Subterraneans truly have shown up, and leaps at a chance to fight them. However, when the Subterranean King does show up he is defeated instantly and his people surrender and scamper back underground.[3]

Abilities and Powers[]

Nothing is known of the Subterranean King's powers due to his quick death but it is presumed that he possessed some skill in swordsmanship since he wielded four swords in battle. He is on the same level as the Deep Sea King and the Sky King.[4] He was the ruler of an army of powerful subterranean Mysterious Beings.

Fighting Style[]

Swordsman: Given his choice of weapons, the Subterranean King likely has some swordsmanship skills. It is unknown how skilled he actually is, due to his quick death at the hands of Saitama.


Swords: The Subterranean King carries four very large flaming swords, one for each arm. His swords emit a powerful lava-like substance and each cleave cuts and burns his enemies.[1]

Major Battles[]

Participants Chapter(s) Episode(s) Result
Subterranean King vs. Saitama 4 1 Subterranean King is killed.


A relief of the Subterranean King encircled by two centipedes, from the original release of Chapter 102.


  1. 1.0 1.1 1.2 One-Punch Man Encyclopedia; One-Punch Man: Hero Encyclopedia, page 112
  2. One-Punch Man Manga and Anime; Chapter 4, and Episode 1
  3. One-Punch Man Manga; Chapter 4, page 2-23
  4. One-Punch Man Interview; Niconico Interview
  5. Tonari


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 *
Native Tribes
Forest Tribe
Warning.png Expand to see original webcomic information. Beware of spoiler content.
Skyfolk Sky King Eagle Hawk Falcon Kite 
Subterranean People
Terror Lizard Clan Ancient King