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Mysterious Beings

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Mysterious Beings (怪人, Kaijin), or simply Monsters, are terms used to refer to non-human creatures that pose a threat to society.

There are numerous unnamed monsters.

OverviewEdit

According to Dr. Genus, humans can naturally become monsters from a desire to transform into something else through their bad habits, a complex or a burst of dissatisfaction with their regular selves. They begin their transformation due to their environment that triggers an abnormal cell reaction. Mysterious Beings can also be artificially created through the power of science such as Marugori. Non-human life can also be transformed into a mysterious being through factors such as pollutants, environmental changes and genetic engineering. Some mysterious beings are naturally born to begin with and did not undergo any transformation such as Pureblood as he came from a bloodline of ancient vampires or Boros and the Dark Matter Thieves as they were aliens to begin with.

It appears that like real life humans, Mysterious Beings in the series breathe by inhaling Oxygen and emitting Carbon Dioxide.[1]

Generally, when a human transforms into a monster through an obsession, their transformation is related to their obsession such as Devil Long Hair. On the other hand, Monster Cells transforms humans into Mysterious Beings by building upon the current talents of the user. This method of transformation comes with the cost of losing the ability to grow further.[2] According to Choze who ate a Monster Cell, a drug is secreted in the brain which removes the morals of the user. Mysticism can also be a mean for human to turn into Mysterious Beings like in the case of Sword Demon Executioner as he sold his own soul to his blade and turned into a monster. 

Monsters first started appearing more frequently in the past 15 years.[3] It is still unknown what their actual purpose is, but it seems that most of these creatures are hostile towards mankind, wreak havoc in the cities and terrorize the citizens. Some of the mysterious beings come from human backgrounds who were turned because of their obsession for certain things. For example, Crablante was turned into a Mysterious Being for eating too much crab or Fist Fight Djinn for his thirst for fighting. Furthermore, another alternative method for humans to be turned into Mysterious Beings is through the ingestion of Monster Cells provided by the Monster Association.

Mysterious Beings are especially concentrated in Z-City and Q-City.[4] These monsters are the reason the Hero Association was founded by Agoni.[5]

Some Mysterious beings have created an organization similar to the Hero Association to oppose them, showing they can work together if they needed to. Mysterious Beings also seem to be able to detect the distinctive auras of other monsters as large numbers of monsters headed to Z-City to join the Monster Association.[6]

Some certain Mysterious Beings or parts of their body can be edible for humans as seen when Saitama ripped off all of Kombu Infinity's leaves to cook his Miso soup and suffered no ill effects afterwards. Another example is Garou, who ate a monster's arm and similarly suffered no ill effects.

List of known Mysterious Beings by Disaster LevelEdit

Types of Mysterious BeingsEdit

There are numerous types of monsters, and some monsters belong to multiple categories.

Natural Type: They are sentient races that have been dormant and/or living in seclusion from the surface world.

  • Seafolk: The Seafolk are a race of beings that have come from the sea to take the surface of the earth for themselves.
  • Skyfolk: The Skyfolk are a race of beings that have come from the sky to take the surface of the earth for themselves.
  • Subterranean People: The Subterranean People are the self-proclaimed "True People of the Earth". They live under the earth's crust, but grew too numerous in numbers and planned to take over the surface.
  • Terror Lizards: The Terror Lizards are dinosaur-like creatures that have come from mountains to take the surface of the earth for themselves.
  • Vampire: Ancient bloodsucking creatures with a long history.
  • Forest Tribe: A race of beings of unknown origin that have come to revive the lost greenery with fertilizer made of human corpses.

Unusual Type: The most bizarre type are the Mysterious Beings that were normal individuals whose change happened through performing an action obsessively.

  • Ugmons: Ugmons are grotesque creatures created from ugly humans.

Extraterrestrial Type: They are sentient beings beyond the planet Earth, coming from outer space. All members of the Dark Matter Thieves belong to this type.

Artificial Type: Normal beings or individuals which through scientific means gained superpowers or mutations.

  • Mutant: Mutants are creatures created through genetic modification.
  • Robot: Robots with artificial intelligence that pose a threat to humans are treated as Mysterious Beings. G4 is one such example.
  • Cyborg: Cyborgs are cybernetically enhanced living beings.

Humanoid Type:[7] Mysterious Beings who are hard to distinguish from regular humans in terms of appearance. Do-S, Gale Wind, and Hellfire Flame are part of this type.

Non-Sapient Type: Some Mysterious beings are just feral beings with no higher brain function, similar to that of a wild animal.

Human Type: A human who is designated as a monster without actually becoming one. Garou and Homeless Emperor are two such examples.

Infused Type: Mysterious Beings who are the result of a human or animal consuming the uncooked flesh of a monster. For example, a human who has eaten a Monster Cell or the crows who ate the Beast King's flesh. Several have displayed the ability to switch back and forth between their human and monster forms.

Disaster LevelsEdit

Disaster Levels

Disaster level threats. Clockwise from top left: Tiger, Demon, God, Dragon

Mysterious Beings are assigned disaster levels to estimate their destructive potential. The levels are as follows (in order of increasing threat level): Wolf, Tiger, Demon, Dragon, and God. Although the disaster level system was created to estimate the threat levels of Mysterious Beings, it can also be applied to other threats, such as villains like Garou and natural disasters like the giant meteor. They give heroes and citizens an estimate of what level of danger to expect. The Monster Association also assigns disaster levels to its members.
Disaster Level Pamphlet Recreation

The Hero Association's disaster level pamphlet

Several factors are taken into consideration when determining a disaster level. These factors include aggressiveness, the difficulty of extermination, and combat prowess.[8] Disaster levels sometimes do not correctly indicate how threatening a threat is to human society and thus do not truly represent individuals' combat prowess when compared to one another. For example, Gouketsu was much stronger than Bakuzan, even though both were classified as Dragon-level threats.

Disaster levels can be incorrectly assigned. These may be due to the Mysterious Beings hiding their strength such as Withered Sprout, ignoring context-dependent factors such as suitability to the particular event or an individual defeating monsters without reporting their true level of strength. While heroes engage monsters, they sometimes must update the Hero Association on the correct threat level. While some heroes stick to attacking weaker Mysterious Beings to maintain their ranks, defeating a high disaster level monster is very influential on hero rankings. Many heroes challenge these powerfully ranked monsters to move rapidly up the hero ranks such as Stinger who rose to A-Class within six months.[9]

Disaster Levels and Descriptions
Disaster Level Descriptions
God A threat endangering the survival of all humanity
Dragon A threat endangering multiple cities
Demon A threat endangering a whole city or its infrastructure.

Based on the official comparative scale, the average Demon threat requires:

  • 10 A-Class heroes or
  • 1 S-Class hero to defeat.
Tiger A threat endangering the lives of a great number of people.

Based on the official comparative scale, the average Tiger threat requires:

  • 5 B-Class heroes or
  • 1 A-Class hero to defeat.
Wolf Appearance of a being or a group that might pose a threat.

Based on the official comparative scale, the average Wolf threat requires:

  • 3 C-Class heroes or
  • 1 B-Class hero to defeat.

TriviaEdit

  • Despite being considered a God level threat by fans, during a Q&A section with the original author, it was stated that Boros is above Dragon. This could mean that Boros is in an unknown level between Dragon and God or indeed a God level threat, but it was still never specified.
  • Wolf is never used or even considered a disaster level in the anime.
    • This is most likely due to the near lack of Wolf monsters in the manga at the time.
  • God level threat is represented by a Fenghuang, which is rather ironic, since the Fenghuang is often associated with high virtue and grace and denotes positive connotations.

ReferencesEdit

  1. One-Punch Man Manga; Chapter 97
  2. One-Punch Man Manga; Chapter 92, page 5
  3. One-Punch Man Manga; 200 Yen
  4. One-Punch Man Manga; Chapter 20, page 8
  5. One-Punch Man Manga; Chapter 15, page 24
  6. One-Punch Man Manga; Chapter 80, page 14
  7. One-Punch Man Manga; Chapter 61, page 3
  8. One-Punch Man Manga; Disaster Level
  9. One-Punch Man Encyclopedia; One-Punch Man: Hero Perfection, page 32
  10. One-Punch Man Stream; 16/5/2018
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