Devil

***All Information and Picture is taken from the Mother Site the Chainsaw Man Official Wiki***

## DESCRIPTION

### Species

Supernatural Beings

**Devils** (悪あく魔ま, *Akuma*?, or デビル *Debiru*) are a race of supernatural entities appearing throughout the World. They are creatures that feed upon humanity's fears.

## Overview

### Origin

Devils are born in Hell. All Devils are born with a "name" that correlates to a concept. These can range from highly tangible (Fish, Tomato) to entirely abstract (Future, Curse). The concept does not have to refer to something that exists; there is no indication that ghosts, zombies or angels exist in the world, yet all these names have corresponding devils. Each name is unique to its respective Devil. Devils manifest according to the collective consciousness surrounding their names (for example: the Gun Devil appears to be constructed out of guns and has gun related abilities). They are the embodiment of the fear that "name" represents, so as long as that "name" instills fear, they incarnate. The concept of a Devil itself doesn’t have to be scary on its own but it’s power can also rely on how much of a scary image it has such as how cars aren’t scary on their own but Makima states that a Car Devil would be powerful because you can often think of car crashes and other car related incidents. Devils that die in Hell reappear in the human world; Devils that die in the human world reappear in Hell; making them effectively immortal. Devils cannot recall any memories from their previous lives. According to the Angel Devil, him and the other Devils of Special Division 4 all remember the sound of the Chainsaw Devil's engine roaring before they died.

### Physiology

The appearance and physiology of a devil varies from one to another as their shape and bodily structure are related to the "name" they embody. In general, they are formed from skin, blood, bones and internal organs such intestines. Despite different devils exist such as tomato, grape, sea cucumber, they usually contain human bodily parts such as limbs, eyes, fingers even though the name they represent do not possess such as bodily parts. Devils who are friendly and are more inclined to humans will take on an very humanoid form in the natural state of their incarnation but there have still been some non-humanoid Devils who have been friendly towards humans such as the Fox Devil. A devil's or fiend’s appearance as a whole isn’t always indicative or even representative of what concept they may represent as some are more obvious but some look nearly nothing like their respective concept if at all. Devils primary feed on the blood and fear of humans, however they can also survive by drinking the blood of other creatures (such as fiends and other devils), by consuming blood and fear they can quickly heal their injuries and become more powerful. For that reason, while devils and fiends can also consume other kinds of foods, such as vegetables and fruits, most of them refuse to just live off by consuming regular food, since it will not heal their wounds or give them more power. Devils also appear to be incapable of dying due to old age. Because of this, they can live forever for as long as they are not killed by external factors. It is unknown how all Devils age, or if all Devils can age, in the sense of reaching a state of maturity or even having an actual age themselves. Most canon ages are ambiguous. Aging may vary upon devil to devil. Some examples of more explicit Devil aging is the Control Devil having the Makima incarnation be a grown woman presumably in her mid 20s and the Nayuta incarnation being a little girl of unknown age. It is unknown if Nayuta rapidly aged or just spawned the way she currently looks. The Typhoon Devil was once a partially humanoid looking Devil who had the form of an old man in one incarnation and a baby who could oddly speak properly in another. It is unknown if some devils are completely ageless or if all of them have some sort of age. Devils also have a "near-death" state where their appearance for what incarnation is differs to a weaker form, we have only seen two near-death states which is the dog form for Pochita and the bird form for Yoru. It is unknown if all near-death states have to look like "cuter" or small creature versions of their devils.

### Primal Devils

A variant of normal Devils are the Primal Devils. Primal Devils, also known as the **Primal Fears** possess names that embody fears found naturally within the human psyche. They are shown to be immensely powerful and frighten normal Devils and Fiends, including those who were previously unaware of their existence, Unlike other Devils, Primal Devils have not been killed and thus, they have never been on Earth or had their identities reset by reincarnating.

### Devil's and Primordial Devil's General Abilities

* **Fear Empowerment**: All Devils are born with a "name" that ties them to a concept. Devils feed on the fear that humans and other creatures have towards that concept, gaining their strength from it. Because of this, a Devil's power is deeply related to how humans perceive the concept and the visual images that their "name" inspire. The more fear is associated with a "name", the more powerful the Devil who possesses it becomes. An example offered by Makima is how a Car Devil would be stronger than a Coffee Devil, since cars conjures up the mental image of getting run over and dying, while coffee does not evoke any scary ideas; another example is the Chicken Devil, which is so weak that it was kept as a class pet for a high school and killed when a student fell onto it. The fear that humans have towards Devils in general is also a source of power that they can utilize, since it was stated that after the Gun Devil attack, Devils grew stronger due to people being more afraid of them. Devils can also feed on the fear that other Devils have towards them, with the Chainsaw Devil managing to become extremely strong by using Devils fear as his source of power.
* **Blood Consumption**: All Devils can consume blood of other creatures to heal their injuries, it is also implied that Devils can grow more powerful by consuming blood. While all Devils can consume blood to quickly regenerate, powerful Devils have shown to possess better regeneration. Hybrids and other powerful Devils, such as the Gun Devil and Darkness Devil, have healing factors so potent that they are nigh-immortal. The flesh or blood of a devil can be feed to other creatures, making them stronger and even giving them the ability of the devil they’ve eaten, however this only works if the flesh/blood they ate came from a devil that is still alive as Denji did not get more powerful or gained the Control Devil’s ability, despite consuming Makima’s entire body.
* **Contract Creation**: All Devils can make contracts with humans, allowing humans to borrow some of their power in exchange for a sacrifice. However, fiends are unable to perform contracts and devils are unable to perform contracts between each other.
* **Corpse Possession**: All Devils can also possess human corpses. This in most cases ends up creating a Fiend, though in rare cases it can end up creating a Hybrid instead under certain circumstances. The personality of the fiend may mirror that of the corpse if the brain is still intact, as evident by the Violence Fiend's polite and gentle attitude. In these scenarios, the devil may also retain some memories from the body they took over. In rare instances, devils deliberately would like to retain the personality of the possessed corpse, effectively reviving them, and take over their personalities from time to time. The only known instance of this happening is with the War Devil, who took over Asa Mitaka's body while keeping her ego intact.
* **Reincarnation**: Another ability common among all Devils is reincarnation: when a Devil dies, they reincarnate in hell; when they die in hell, they reincarnate on Earth. This ability makes them practically immortal. However every time they reincarnate, their memories and personalities are reset, making them completely different individuals from their previous incarnation.
* **Flesh Power Boost**: It is said that a devil or human of any power can have their abilities boosted if they eat the flesh of a super powerful devil no matter what their original power level was. The current only known examples are the numerous devils who became more powerful by eating the Gun Devil’s flesh and Santa Claus becoming a very powerful abomination after consuming the flesh of the Darkness Devil.

### Unique Abilities

Devils also may possess other supernatural abilities correlating with their name. The conditions and effects of each supernatural ability is unique to respective devil. Using these abilities usually consumes a portion of their blood. Despite each devil has their own abilities, these may be common between different devils or fiends such as Force Manipulation which used by the Control Devil and the Darkness Devil or intangibility which used by the Spider Devil and the Shark Fiend. According to Aki, Devil's abilities are undone upon death. Sometimes a devil's natural ability or special ability may not always correlate or link up with what exactly their concept represents, or at the very least, won't represent a trait that is instantly known with the concept. The reason for these can be because of things like a more powerful Devil being able to have access to more abilities, like how the Snake Devil barely uses traditional snake ways of attacking, such as venom, but has shown "cheats" like consuming another devil/contract to make that devil fight on their side. But it might not always or only apply to powerful devils.

## Fiends

A **Fiend** ( *Majin*?, lit. "Demonic Person"), is a devil which has taken over a person's corpse.

### Fiend Overview

Fiends are devils which have taken over human corpses as it is their last resort to survive. Devils lose a significant amount of their supernatural power and ability to perform contracts after becoming a fiend. Fiends can be identified by their distinct head shapes, such as Power's horns, Beam's shark head or Pingtsi's hair. Similar to how a devil’s appearance and set of powers may not always represent or go with their “name” (concept) the same can apply for fiends.

Fiends will usually retain their original personalities they had as devils. However, some fiends retain more of the original corpse's brain than others, leading to their personalities becoming mingled such as Violence Fiend, who should be inclined towards violence, but instead prefers peace. Devils may also deliberately choose to retain half of the original corpse‘s brain to blend into society, causing a living fiend host, as with Asa Mitaka's possession by the War Devil. It should be noted that both of these types of fiends are extremely rare being the exception not the rule.

With fiends of the living host variety, both personalities exist separately in one body until the devil decides to take over the remaining brain or relinquishes full control back to the human. The Devil possessing the human in this case can choose when to control the body, but may not always be able to take over in instances where the human host is under high stress or in immense fear. When not in control, the other personality is still visible and audible to the one controlling the body in the form of a hallucination. Also unique to this type of fiend, the fiend's distinctive head feature will only become visible when the Devil's personality is in control of the body.

Should a fiend die, the devil that possessed the body generally reincarnates once they're in hell. However, since the body they possessed is destroyed, they lose all of their memories of their previous life. Once they become reborn as a new devil they will usually have the same exact personality as their current incarnation but if they are the rare type of fiend, then they will develop a new personality should they possess a new corpse.

### Fiends Abilities

Fiends possess the supernatural abilities of their respective devils but to a lesser degree. Some fiends are able to transform into their original devil forms temporarily. They also can restore their health by consuming blood. However, they are unable to make contracts with devils or humans.

Power had the ability to revive as a devil from her pact of blood consumption with the Chainsaw Man. However it could be that because she is the Blood Fiend/Devil it could be unique to her that this blood pact with a powerful enough devil/hybrid was enough to fully revive her as a standard devil again. Yoru made the claim that if Asa were to help in her accomplishing her goal that she promises to give her body back. While this could have been just some way of persuading her to follow her orders, it is possible that War Devil has the rare ability of freely leaving out of the state of being a fiend without having to die and then reincarnate. Note that War Devil was in a severely weakened state even as a full Devil so if it is true, then perhaps other devils with an ability to de-fiend themselves can do it even when very weak or it could only apply to weakened Devils of certain types or a specific status. It is unknown if other fiends have a special ability or their own individual way of returning to their original standard devil form, other than a brief transformation, but it could possibly vary to individual on how it works.

## Hybrids

**Hybrids**, also referred to as a **devil-human** (悪あく魔ま人にん間げん, *Akuma-ningen*?) (*real name unknown*) are humans who have merged with and can take on the form of a **Devil**.

### Hybrid Overview

The official name for hybrids was eaten and erased by the Chainsaw Devil, but hybrids continue to exist despite their erasure for unknown reasons.

In rare cases, a human can become fused with a devil and turn into a hybrid. The only known method of becoming a hybrid is via a contract or surgery, in which the devil replaces the human's heart. The hybrid's heart therefore becomes both their source of power and weakness.

Hybrids keep their human consciousness and appearance but can transform into human-devil hybrids through a trigger and manifest the supernatural abilities of their fused devils. When transformed, the head and, in many cases, the arms are affected, while the rest of the body remains human. Though their appearance varies from weapon to weapon, most of them take on a mechanic/metallic appearance and all of them lack lips, exposing monstrous teeth. When they are not transformed into devils, they are, with the exception of their triggers, indistinguishable from regular humans, unlike fiends.

Although the human is fully in control when transformed, the devil inside them can also take control and turn back to their devil form if their contract is broken, as seen when Pochita took over Denji's body and fully transformed into the Chainsaw Devil. The devil is also able to reform into their original selves if the hybrid tears out their heart, though this would presumably leave the human unable to transform.

Currently there are eight known hybrids: Chainsaw, Katana, Bomb, Crossbow, "Spear" ( *Yari*?), "Flamethrower" ( *Kaen Hōsha-ki*?), "Longsword" ( *Chōken*?), and "Whip" ( *Muchi*?). Besides Chainsaw, the others are collectively named as **Weapon Humans** ( *Buki Ningen*?) and were members of Special Division 5 under the supervision of Makima.

Their triggers are all based on the weapons whose fears their powers are based on and manifest on various spots on their bodies. The chainsaw hybrid has a chainsaw cord on his chest, the bomb hybrid a grenade pin on her neck, the crossbow hybrid an arrow in her right eye socket. The spear hybrid has a spear he can pull out of his neck. The katana and longsword/broadsword hybrid have their respective weapon manifested in their arms. Unlike the rest, the whip and flamethrower hybrid trigger their transformations by making certain motions with their hands.

### Hybrid Abilities

* **Hybrid Transformation:** The main ability of a hybrid is transformation into their respective devil forms fused with their human form. Certain actions act as triggers for hybrid transformation, with each action usually referencing a part of the devil a human is fused with (Ex. Denji transforms by pulling Pochita's tail like a Chainsaw start cord, Reze takes out a pin in her neck like a pin in a grenade). Their strength, speed, and durability are increased dramatically after the transformation and they also gain the ability of their respective Devil. Their transformation usually affects their heads and arms, but skilled hybrids can also transform their legs into weapons.
	+ **Regeneration:** Although hybrids can regenerate by drinking blood just like devils and fiends, they are also able to regenerate and even recover from fatal injuries by activating their trigger without needing to drink blood, making them effectively immortal. Kishibe compared Denji and Power's respective hybrid and fiend biology by stating that the former was "immortal" while the latter was only "semi-immortal". An example of this ability is when Denji split Katana Man in half, but the halves stuck themselves back together when Denji activated Katana Man's trigger by pulling off his left hand.

* **Blood Consumption:** They are able to restore their health by consuming blood, like devils and fiends. However, their regenerative abilities are nigh-limitless and they can revive if there is an adequate amount of blood to consume, even if their head is severed or their heart is removed from their body. If there is not enough blood, the transformation will stop on the way even if they try to transform again, the armament will not appear even if you perform certain actions, or only the damage will recover and return to the human form. When transforming or disarming, the changed parts melt like mud.
* **Immortality:** Hybrids are immortal and cannot die unless their core, the devil that resides in them, has been destroyed or permanently removed from them. They also seem to be stuck at whatever age they were when they became a hybrid.

* **Contract Creation:** Like regular humans, and unlike fiends, hybrids can make contracts with devils, as it is shown that despite having a contract with Pochita, Denji is also able to contract with the Blood Devil. However, it is unknown if the devil inside the hybrids can make a contract with other humans.

## Devil Transformation

### Devil Transformations Overview

A type of contract where a human can gain a monstrous or very inhuman form is called a "devil transformation". This appears to be different from the contract with hybrids and the forms that have been seen appear even more inhuman than them. As devils fused into hybrids will gain a mostly permanent fusion with the human who became one, devil transformations seem to be a human's own transformation derived from the devil they contracted with but without the same exact function or triggers shown like a hybrid. A person's own individual devil transformation can look unique even if those individuals contracted with the same exact devil. The people who have devil transformations that we've seen so far are: Santa Claus' contract with the Doll Devil and later the Darkness Devil, Class President and finally Yuko's transformations from the Justice Devil. It is unknown how many people with a devil transformation can easily turn back into their human form as Yuko said that she became a "devil" and was trying to find her devil hunter relative who she said can turn her into a human again.

1. ↑ Chainsaw Man Manga: Chapter 6
2. ↑ Chainsaw Man Manga: Chapter 11
3. ↑ Chainsaw Man Manga: Chapter 56, Pages 12 - 13