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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 blue 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 SagaEdit

Saitama Introduction ArcEdit

Saitama vs. Subterranean King reality

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 PowersEdit

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 StyleEdit

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 BattlesEdit

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



  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


Mysterious Beings
Unaffiliated Crablante Vaccine Man Marugori Piggy Bancon Giant Snowman Himawari Personification Of A Light Pull Cord Kombu Infinity170,000-Year-Old Cicada Larva 170,000-Year-Old Cicada Adult Demonic Fan Delorean Alien SeerThree-Eyed Ghost Surprise-Attack Plum Tongue StretcherGiant Crow Octopus Claw Man Grizzly Nyah Suppon Gigakigan Hotdog Game-Berus Autumn Phantom Red Golden-ringed DragonflyJumping Spider Scaledon Enamel Black Roast Macho Daikon Withered Sprout Twin-Headed Tsuchinoko Man-Eating Capybara Pot Bellee Kenzan Rat Pesky Clown
Native Tribes Forest Tribe (Forest King ) • Seafolk (Deep Sea King Lord Great White Messenger of the Seafolk ) • Skyfolk (Sky King Eagle Hawk Falcon Kite ) • Subterranean People (Subterranean King ) • Terror Lizard Clan ( Ancient King )
Dark Matter Thieves Boros Geryuganshoop Melzargard Groribas Dark Matter Gunner 
The Organization G4 G5 
House of Evolution Carnage Kabuto Beast King Armored GorillaKamakyuri Ground Dragon Frog Man Slugerous Mosquito Girl 
Anime-Only Mysterious Beings Super Custom YO649Z Mk. II Fish of Darkness *Pluton Men's Esthetician Man *Dirt Earthworm Japanese Giant Salamander Lord of Mountains TV Junkyard Monster Urn Eel Crazy Brown Bear 
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