One-Punch Man Wiki

Earth (地球, Chikyū) is the planet on which One-Punch Man takes place. Although the planet largely resembles the real-world Earth, it possesses some distinctive differences.


The Earth, unlike its real-world counterpart, possesses a single super-continent instead of multiple large landmasses. The continent has 26 cities, each identified by a letter of the modern English alphabet.

In addition to the supercontinent covering most of the planet, it possesses smaller islands and landmasses that lie in its immense ocean.[1]

In the anime, Earth was shown to have four natural satellites instead of a single Moon, like in the manga.[1]


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The reason why the Earth is so radically different from its real-world counterpart is that it underwent two major "eras of change."[2] Long ago, there were several nations that fought countless wars for land and resources.[2] These constant wars decreased the human population significantly, so the nations of the world united to form a world government and unified the languages.[2] This was known as the first era of change.[2] However, the fallback from the previous wars caused several problems, such as increased environmental toxicity, rapid climate change, a rise in sea levels, and the birth of various new lifeforms.[2] The changes made most of the planet uninhabitable, forcing humanity to migrate to the supercontinent.[2] This was known as the second era of change.[2]


Earth's fauna

Humans are the dominant species of Earth. The planet is also home to multiple species of plants and animals. Unclassified creatures are grouped into a category of beings called Mysterious Beings. This category also includes non-human races, such as the Subterranean People, the Skyfolk, the Seafolk, and the Terror Lizard Clan.



Left: One-Punch Man banknote (top) and Japanese Yen banknote (bottom). Right: The coins are identical to Japanese Yen.

  • The shape of the planet's supercontinent is the same as the Saitama Prefecture in Japan.[3] This is the prefecture that One-Punch Man author ONE was brought up in.[4]
  • The "seven faced islands" contain potatoes.[5]
  • The currency of the world is nearly identical to the real-world Japanese yen. The 10,000 yen note (the only banknote shown in the series) features the face of a ball-chinned man (possibly an ancestor of Agoni and the Ball-Chinned Kid) instead of Fukuzawa Yukichi.



Cities A-CityB-CityC-CityD-CityE-CityF-CityG-CityH-CityI-CityJ-CityK-CityL-CityM-CityN-CityO-CityP-CityQ-CityR-CityS-CityT-CityU-CityV-CityW-CityX-CityY-CityZ-City