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Yoru

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Yoru from Chainsaw Man. Includes sisters. Rated Explicit just in case.

Last checked on Wyvern: Created Updated Archived since

Yoru (ヨル?) is the main antagonist of the Academy Saga. She is the War Devil (戦争の悪魔 Sensō no Akuma?) who embodies the concept of war. She is a member of the Four Horsemen, who now occupies Asa Mitaka's body as a Fiend.

Following her taking over Mitaka's body, Yoru sets out to locate Chainsaw Man, whom secretly attends the Fourth East High School with them. She also coerces Asa into looking for a target to seduce and turn into a weapon. They choose Denji, however they eventually fail and lose their memories. After a meeting with the Death Devil, she becomes a secret member of the Chainsaw Man Church.

After defeating Pochita and regaining her power through the increased fear of war, Yoru planned on erasing the Death Devil to enact a never-ending World War II.

Appearance

Human Fiend

After taking over Asa Mitaka's body and occupying half of her brain, the War Devil took on her appearance, but with added facial scars across the center of her face and left cheek, which are in the same location where Mitaka's face was slashed by the Class President. When Yoru takes over, her eyes have multiple rings, similar to Makima, who was her sister and another Horseman. Her hair is also usually worn loose rather than in twin tails like Mitaka, and her posture is a little more straightened and confident in comparison to the timid and shy Asa. Yoru always wears the same clothes as Asa, most commonly a school uniform, since they share the same brain and just need to switch control between each other.

Personality

Yoru is first shown to be very confident and prideful, treating her opponents as mere warm-ups and confidently vowing to take back the Nuclear Weapons Devil from Chainsaw Man. This might be a sign of her over-confidence as she lost to him previously while at full strength and is significantly weaker now. However, she is aware of her limitations and will back down from a fight if she believes the odds are against her.[2][3] Yoru holds little sentimental value or attachments to humans, and is mostly uncaring of Mitaka's feelings, as evidenced by her blatant disregard for Mitaka's feelings of friendship for Yuko, repeatedly asking Mitaka to kill Yuko to use as a weapon or when she goes as far as to physically hurt Asa herself to forcefully regain control albeit with the intention of saving them both. She's been shown to be very cold and logical which clashes with Asa's highly emotional personality. Since she's completely unaffected by the Falling Devil, that means she easily gets over highly traumatic events such as being almost killed by Pochita and losing her power. Due to her predisposed nature as the War Devil, she keeps getting into conflicts with everyone around her, sometimes intentionally and sometimes not. Ironically these conflicts usually serve to hurt her. Later, Yoru devastates a whole city while using her powers and laughs maniacally when looking at the destruction she caused, reminding Asa that she, at her core, is still a Devil.

Unlike her fellow Horsemen Makima and the Death Devil, who are almost always calm and composed, Yoru is more "human" as in flawed, immature and naïve. She is prone to losing her temper, and became embarrassed and angry at being rescued unintentionally by her archenemy, Chainsaw Man. In her anger, she sometimes throws childish tantrums by punching and screaming into the pillows on Asa's bed.[4] She is very insecure and gets royally offended whenever her strength or intellect is questioned.[5][6] Yoru is also worried about losing her power and being forgotten, showing a more sensitive side. Adding to that, she seems to show signs of sympathy, at least towards Asa. Yoru is able to form emotional attachments to others, such as her "comrades" whom she wants to rescue from Pochita's stomach, and the Gun and Tank Devils whom she considers her children and is hesitant to turn into weapons, even if she eventually does so. She is very content with eating basic foods like plain bread showing she isn't very demanding when it comes to physical pleasures.

She does not have a good understanding of human society or relationships and takes things at face value, is easy to provoke and often threatens Mitaka with death. Though over time she grows closer to her and seems to understand and adapt to human society more, albeit she's still quite inept and will often unintentionally worsen her relationship with Asa because of that. Despite her apparent social-ineptitude she is very cunning in dangerous situations such as when fighting Devils and is easily able to keep a cool head unlike Asa. Though in the most extreme of circumstances Yoru will panic and scream out in fright, such as when Asa was caught by the Falling Devil.

In rare moments, Yoru is willing to compromise her own safety and interests to avoid causing Asa traumatic grief, swerving away from Denji in order to not run over a dove tied to Asa's traumatic memories of Bucky. Despite initially keeping Asa alive just to weaponize her guilt and her constant manipulation, Yoru confesses her limitations, essentially calling Asa "arrogant" for feeling intense sorrow over doing what she needed to survive, reassuring Asa that the "sins" tearing her apart are insignificant to a Devil, and ultimately acknowledges Asa's feelings and helps her move past her deep-seated guilt.

Relationships Asa Mitaka

Yoru resurrected and inhabits Asa's body, turning her into the War Fiend, but left half of Asa's brain intact, keeping Asa alive. With the two now sharing one body, Yoru was originally planning to use Mitaka as a way to blend into human society as she's unfamiliar with it. At first, she is very hostile, threatening to kill Mitaka if she doesn't cooperate. However, she did not go through with her threat of killing Mitaka when Mitaka refused to go into school,[7] and despite making such threats several more times through the story all of them seemed to be no more than saber rattling without any real weight behind them. Yoru is tolerant of Asa's antics, frequently compromising with her and has offered to do favors for Mitaka, such as "take care of" the kids who were bullying her and provided the easier name of "Yoru" when Mitaka complained that "War Devil" was too difficult to use as a name. Her vendetta against Chainsaw Man means that she will tolerate anything so long as her goal is ultimately still being worked towards.

After their fight with Yuko, Yoru's perception of Asa changes, no longer viewing her simply as a means to blend-in but realizing that Asa is extremely good at making strong weapons.[8][9] Because of this, Yoru views Asa as indispensable as she cannot defeat Chainsaw Man without her help. Hinting at this is the fact that she told Asa to "stay back" after encountering the Falling Devil suggesting she might have taken over not only with the intent to protect herself but also Asa specifically. Another example is when Yoru didn't take over the rest of Asa's brain (which would kill her) even while Mitaka is actively putting both of them in grave danger. Yoru has created her mental image of Asa's personality; despite being baffled that someone would feel guilt over destroying an aquarium, she comments that that is typical for Asa. Her mental image of Asa is fairly flawed as Yoru deeply miscalculates Asa's behavior in a life-or-death situation, being very confused when Asa gets scared and mad at Yoru for cutting her hand.

Over time Asa grew used to Yoru's presence to the point of trying to chat with her having forgotten that they're currently separated.[10] However, despite growing used to Yoru's presence she's still not fully comfortable with her and doesn't trust her one bit. Yoru on the other hand, being a Devil, still doesn't understand Asa and gets frustrated at her perceived irrational behavior, it's likely she doesn't understand the concept of depression and assumes Asa's sadness came entirely from the influence of the Falling Devil.

In tense moments Yoru, particularly if Asa's fright is preventing her from taking control, will go to cruel measures to save themselves such as self-harm. Yoru doesn't even consider there might be a better way of handling Asa's stress such as just calming her down since she's not used to pain and fighting. Though her cruel measures don't seem to be done out of malice but purely out of a logical and survivalist mentality. Asa does not appreciate this at all however. Yoru was confused and angry at Asa's emotional response to this as she thought she was only trying to help her. Either due to her lack of humanity or a misunderstanding of Asa's character she continues trying to convince Asa using cold and logical arguments despite the latter being emotionally distressed. Ignoring Yoru's unsupportive comments she grows frustrated that Yoru still doesn't understand her feelings despite being able to read her mind and continues to break down in front of her perhaps seeing comfort which Yoru unfortunately still does not provide.

Yoru will occasionally mention when she thinks Asa is being too self-deprecating and will half-heartedly try to comfort her which could be signs of genuine sympathy.[11] However, Yoru could simply be putting on a mask to make Asa more likely to continue cooperating with her. Yoru still values her own goals greatly over Asa's feelings as shown by her deciding to kill Yuko despite Asa's protest or trying to turn Denji into a weapon after Asa falls in love with him. She has also been shown to be manipulative towards Asa, such as trying to gaslight her into killing Yuko[12] or morally justifying murder as a "necessary evil".[13]

As Yoru has grown more and more powerful, her relationship with Asa has only strained further, and as of such, she's increasingly shown to disregard her host's emotions. One such example is how despite being aware of her traumatic experiences with controlling parental figures, Yoru still justifies transforming her "children" into weapons by telling her that a child is merely their parents' property. Another is how Yoru didn't take Asa's feelings into consideration when she shared an intimate moment with Denji; something which made her mad enough to be able to force the War Devil to hurt herself in retaliation, which surprised Yoru who said she was acting on Asa's feelings at the time. When Yoru finally reveals herself to Denji as "Asa's other personality", she jokes about how Asa is on the verge of a mental breakdown over all the lives she's killed in her rampage against Pochita, and still continues killing some more people. Despite the incredibly manipulative and toxic nature of their partnership, Yoru is the closest thing Asa has to a friend. When Denji vomited a dove, Yoru regained the memory of Asa accidentally killing Bucky and swerved away from it at the cost of her own safety. When Asa questioned whether she would do this, Yoru revealed it was because she was aware Asa hates when birds are killed. Indicating that, despite all the past cruelty and disregard for Asa's feelings, there are lines even Yoru is unwilling to cross that would hurt Asa further.[14] Denji

Yoru and Asa decided Denji would be their target to be turned into a weapon. Despite not getting involved directly Yoru will push Asa to continue her date with him even if things don't go her way.[15] She views him as a punk and is annoyed at her feelings of affection for him due to sharing Asa's brain. However, her feelings for him were initially very shallow as she immediately tries using these feelings to turn him into a weapon, albeit unsuccessfully.

Later during his movie date with Asa, she tries to push him away presumably to keep him safe from Yoru. In response, she takes over and kisses Denji likely in hopes of quickly winning his heart which would allow her to finally turn him into a weapon, but she is swiftly incapacitated by Nayuta instead. After kissing him, she could be seen visibly blushing. After their memories have been wiped and altered she assumes Denji stood them up but is indifferent to it and swiftly suggests they target a different boy instead. This is in stark contrast with Asa's reaction who was deeply hurt. This love-hate relationship with Denji continued, with the most evident being Yoru pleasuring him in the alleyway after she regained her memories of the kiss.

When trapped in Aging's World, Yoru once again tearfully kisses Denji who himself is crying. When he pushes her off and asks her why she did that, she coyly replies she finds him "cute" when he cries. Upon escaping the Aging's World, Denji asks Asa how she got her arms back and what's going on with her, Yoru finally reveals the truth, calling herself "Asa's other personality". Yoru and Denji run off to a restaurant, where she kills the owner much to Denji's protests, saying she wants to cook for him.

When Denji asks her if she likes him, Yoru says Asa likes him and since they share a brain she does too, and offers to have sex with him but gives him an ultimatum: she'll have sex with him only if he can defeat the Death Devil, or else she will turn him into a weapon and do it herself. When driven into a corner by the Falling Devil and having the chance to turn Denji into a weapon against Asa's wishes, Yoru ultimately had a change of heart and stopped herself, admitting she could not bring herself to do so. However, after Yoru realizes that America had reinvented Nuclear Weapons, she says that she never loved him. During her battle with Denji, she becomes increasingly annoyed at Denji holding her Devil comrades hostage and repeated fleeing from their fight, decrying him as "lower than a Devil". However, after Denji heals her injuries following the end of her battle, she is left utterly confused while holding him at gunpoint. Upon hearing that Denji still wishes to have sex after remembering her initial offer to do so once he defeated the Death Devil, Yoru breaks into laughter.[16] She then calls for a temporary truce between her and Denji, saying that while she hates Chainsaw Man, she still likes Denji.[17] Pochita

Although it eluded her for a while, Pochita is her fabled arch-nemesis Chainsaw Man, who she hopes to defeat in order to regain Nuclear Weapons and get revenge. She despises him for defeating and weakening her which caused wars to cease and in turn reduced her to a shadow of her former self. Furthermore, due to their prior encounter, the fear of war became so minute that she was afraid that she'd fade out of existence.[18] She hates him to the point where she had a meltdown after she's unintentionally saved by him from the Bat Devil. To her dismay the situation repeats itself as they are saved by him once more during the Falling Devil fight, after which Asa falls in love with Chainsaw Man, much to Yoru's protests.

Her desire to defeat the Chainsaw Devil, however, has unfortunately consumed her; even though she acknowledges that transforming the Gun Devil and Tank Devil — two Devils that she considers to be her own children — into weapons would completely invalidate her goals of freeing her comrades, she does so just so she can have the chance of defeating her nemesis and prove that she is better.[19] Death Devil

The Death Devil, under the name "Fami", views Yoru as her "little sister", and claims to be willing to do anything to help her often without Yoru's own consent such as when she trapped Asa and Denji in the aquarium. Despite her apparent affection for her, Yoru doesn't reciprocate those feelings, as she describes her as insane and wants to stay away from her. Fami's contradictory behavior described below could be the reason why Yoru called her insane or due to knowing her actual identity.

Despite her apparent care for Yoru, she contradictory doesn't seem to care about her safety and often puts her in harm's way, such as when she got her under attack by the Eternity Devil or later when she sent the Falling Devil after her. As it turns out, Fami’s main goal is to starve Yoru so that she may brainwash and use her to stop the Nostradamus' Prophecy. However, by her own admission, these attempts to avert the Prophecy have only changed it for the worse as Yoru is eager to kill and erase Death as a concept in order to wage endless war.[20][21]

As shown, Yoru harbored some disgust for the Death Devil due to her going against her nature as a Devil and enjoying life and befriending humans, thinking that Death had disgraced her and their other sisters. However, due to the Death Devil’s premature death and devouring by Chainsaw Man would ruin her plans, Yoru has also shown to go out of her way to save the Death Devil to prevent her powers from activating. Yoru would soon realize that by saving the Death Devil, she could now perceive her as “hers” and proceeded to try and turn her into a sword. Nearly succeeding so if not for Chainsaw Man’s intervention and devourment of the Death Devil.

Later, it would be shown that despite being at odds with her, Yoru does indeed harbor some affection for her elder sister. As shown, where Yoru would soon display anger at Chainsaw Man for killing her elder sister.[22] Famine Devil

While initially greeting her cordially, Yoru does not hold her sister Famine in high regard, as she insults Famine for interfering with her battle with Chainsaw Man by attempting to heal him and derides her as a weakling.[23] In turn, Famine seeks to have Yoru eaten and erased from existence. Abilities

Yoru holds all of the standard Devil abilities, such as regeneration, reviving in Hell after being killed, restoring her health by consuming blood, fear empowerment and enhanced physical prowess. Despite being rather weak at the start, Yoru has the potential to become one of the strongest of the Four Horsemen, even strong enough to prevent the upcoming apocalypse. As stated by her elder sister, the Death Devil, Yoru in full power, is not only powerful enough to stop the apocalypse of her descend, but she is now able to make an apocalyptic scenario far worse than the one she wanted to prevent. Yoru planned to increase the world's fear of war, thereby restoring her power to its full potential. The Death Devil refers to this planned conflict as a "never-ending" World War II.

Due to the California Governor's contract with Yoru, any fatal damage inflicted on Yoru is transferred to a random citizen of California. However, her contract with the Governor of California does not apply to self-inflicted injuries, as they cannot be offloaded onto American civilians. Yoru is also able to use a Contract Trigger ability because of her Gun Gauntlet. Unique

Currently, Yoru has taken possession of Asa Mitaka's body, after her head got sliced in half by the Class President. The War Devil, however, only took over half of her brain, leaving Mitaka’s consciousness intact while still being able to take control over Mitaka’s body anytime she wants to unless Asa is stricken with fear.[24][25] Adding to that if Yoru is already in control, but Asa gets frightened she'll lose control and be unable to regain it until Asa calms down.[26]

Thanks to this unusual circumstance Yoru is able to feel human emotions despite being a Devil.[27][28] Whoever isn’t in control of the body will appear as a hallucination to the other and can even communicate to them.[29] In addition, Yoru is able to read Mitaka’s thoughts and access her memories while the latter is unable to do the same.[30][31]

Supernatural Abilities

Although part of the Four Horsemen, Yoru claims that her Devil power weakened after her body was partially devoured by Chainsaw Man. This, combined with the long absence of wars in the human world (the concept of which is only been relegated to movies and video games), has greatly diminished her original strength.[32] Adding to that her strength was reduced even further by becoming a Fiend.

Combining all of these factors her current strength is a mere fraction of her full power and is by far the weakest Horseman.
During the events of Chainsaw Man Church arc, Yoru experienced a significant power boost due to the fear of war rapidly rising.
As Nuclear Weapons are reinvented in the world, she exhibits a massive boost in her overall power and abilities.

Due to her being the embodiment of the fear of war, Yoru is noted to not only draw on the fear of wars and conflicts, but also draw on the fear of the masses towards all concepts related to them, such as weapons. This was first hinted at when Yoru noted that the bulk of her power also stemmed from the Gun Devil and Tank Devil, as both guns and tanks are weapons heavily used in wars and conflicts, and thus the fear of these weapons increases the fear of wars. The same case was shown with the Nuclear Weapons Devil. After Chainsaw Man had eaten and erased its concept from existence, Yoru’s power dropped considerably as the fear of nuclear warfare was removed from the world. And upon the recreation of Nuclear Weapons, Yoru’s power skyrocketed as people began to fear them again, as nuclear warfare became a concept in the masses' minds once more.

This hints that fear towards other Devils whose concepts closely relate to war can also contribute to Yoru’s power. With Devils such as the Weapon Devils and the fear of the weapons they embody, may also contribute to Yoru’s power due to how the concepts and fears of weapons are tied so closely to war. Furthermore, since they're also concepts related to war, after the World War II Devil and the Nazi Devil were devoured and erased from existence by the Chainsaw Devil, it's likely that the War Devil was further weakened significantly. It's also possible Yoru was weakened further when Pochita ate her arms during her attempt to turn the Death Devil into a weapon. Physical Prowess

Immense Strength: Yoru was able to pull Tanaka's head off his shoulders and spinal cord out of his body, requiring a great deal of force, and is able to easily carry objects as big as herself with one arm over her head. Her strength significantly increased after she experienced a tremendous power boost from the increasing fear of war.[33] Yoru is shown to be capable of crushing the Falling Devil's upper body with a single punch.[34]
    Nuclear Punch (核パーンチ Kaku Pānchi?): Yoru is capable of unleashing a powerful punch that triggers a massive nuclear-like explosion, devastating the surrounding area, as demonstrated after she sacrifices the lives of Virginian civilians.[35][36]
Immense Speed: Yoru is able to move very quickly, easily jumping around and dodging attacks from the contracted Class President and Yuko's Devil form. As the public starts to fear war again, Yoru's speed exceeds the infamous speed of Quanxi; she moves so fast that Yoshida, who was able to keep up with Quanxi, has a delayed reaction.[33] She's able to jump behind the Falling Devil in mere seconds, while leaving her surprised by her speed.[37]
Immense Durability: Yoru is able to take hits that would kill an ordinary person, such as during her battle with Yuko she took a serious hit that flung her across a classroom and into a wall, but was able to get up moments later without any injuries. Later, Yoru's durability increases even further; Yoshida's sword, which was previously able to cut off her arm, could only make a minor skin-deep cut.[33] Even after being hurled away by a Primal Fear Devil, she's still able to retaliate without sustaining injuries.[38]
Immense Healing Factor: Yoru is able to live past mortal injuries, such as getting pierced in the head and regenerating instantly.

Weapon Creation Yoru has the power to transform anything she owns into a weapon, whether it be an object or a living being. Initially, to activate the weapon transformation, Yoru had to touch what belongs to her and say the name of the weapon, but as her power increased, she and Asa became able to create a weapon without even touching the related object and telekinetically summon them regardless of distance without even calling their names verbally. The strength of the weapon is proportional to the amount of guilt Yoru and/or Asa feel in creating said weapon. There is no objective measure of when something belongs to Asa or Yoru, but the greater the guilt (such as Yoru's familial attachment to the Gun Devil and the Tank Devil), the more powerful the weapon will be. It should be noted that as her power relies on perception rather than reality, it’s possible to trick Yoru into thinking she doesn’t own/has power over something that she actually does, thereby nullifying her power’s effects.

Yoru has a heavy preference of creating melee weapons of her victims, primarily swords but also spears, in addition to explosives such as hand grenades. Later on, Yoru is able to create more advanced weapons such as modern firearms, a prime example being rifles, and her Gun and Tank Gauntlets.

Flesh Weapon Creation: Yoru is able to make anyone she "owns", including humans, Devils and Fiends, into a variety of deadly weapons almost instantaneously simply by touching them. This does not appear to immediately kill the human, as they can still scream in agony. In order to make a flesh weapon, Yoru must either: take a limb from the victim which she can then turn into a weapon, kill them and turn their remains into weapons, or form a relationship with someone wherein they "belong to her". She can also make weapons from her own body parts which will violently tear themselves off her if she does so. Flesh weapons created by the War Devil so far are:

Tanaka Spinal Cord Sword (田中脊髄剣 Tanaka Sekizuiken?): A long crooked sword that the War Devil created using Tanaka's head and spinal cord that is ripped out of his body.[40] The blade is sharp enough to easily cut through Devil-enhanced flesh with ease.[41]
Flesh Hand Grenade (手榴弾 Shuryūdan?): A hand grenade that the War Devil created using the arm from the contracted Class President.[42] And it is shown that it is able to detonate like a normal grenade.[43]
Yuko Leg Sword (ユウコ足剣 Yūko Ashiken?): A katana-like blade made from one of Yuko's legs that were severed by the Devil Hunter Club, it presumably lacked unique abilities due to Yoru's lack of guilt, but it never managed to be used.[44]
Left Tank Gauntlet (戦車左腕鎧 Tanku Refuto Gantoretto?): A tank-themed arm gauntlet formed from the Tank Devil after it arrived to help Yoru fight back against the rampaging Chainsaw Devil. Yoru is capable of firing off projectiles using the gauntlet. Yoru can use the Left Tank Gauntlet to re-create any weapon she's created previously and fire them as a projectile from her Right Gun Gauntlet.
Right Gun Gauntlet (銃右腕鎧 Gan Raito Gantoretto?): A gun-themed arm gauntlet formed from the Gun Devil during Yoru's rematch against the rampaging Chainsaw Devil. Like with the Left Tank Gauntlet, Yoru can fire bullets that are strong enough to pierce through the Chainsaw Devil's body and tear off some of his arms. She usually says "Bang! (バン!)" while using this ability, similarly to Makima.
Falling Devil Clothes: After The United States of America had recreated Nuclear Weapons and thus revived the Nuclear Weapons Devil and the fear it embodied, Yoru’s power grew exponentially. So much so that she was now able to overpower the Falling Devil, a Primal Fear, and forcibly turn her into clothes. As shown, the Falling Devil was forcibly broken down and turned into threads before being turned into clothing similar to the Fourth East High School uniform that Yoru/Asa usually wears. The only added apparel being different cuffs on the sleeves, buttons and a long cape.[45]
    Hell Connection: After acquiring the Falling Devil clothes, Yoru can freely manifest multiple doors that connect directly to Hell. This allows her to send certain individuals to Hell as well as travel freely between the two realms herself, similarly to the Falling Devil.[46]
    Gravity Manipulation: Yoru can selectively manipulate gravity on herself, the environment, multiple objects or individual people.[47]
Chainsaw Whip (チェンソーウィップ Chensō u~ippu?): A Chainsaw Whip made from the body of the Accident Devil, after Yoru summoned it from Hell, she transformed it into a deadly weapon capable of shredding the Chainsaw Devil to pieces.

Object Weapon Creation: Yoru has shown the ability to turn objects that belong to her into weapons. Objects that belong to her can either be things she bought or things she took. Weapons created by the War Devil so far are:

Pencil Spear (鉛筆の槍 Enpitsu no Yari?): A wooden spear made from a school pencil. This weapon changes form with each pencil, some are three-pronged spears approximately two meters long, others a meter long spear with four smaller spikes along the side. This weapon is sharp enough to easily kill a human, although Yoru calls them weak weapons.
Ruler Sword (定規剣 Jōgi Ken?): A sword made by a measuring ruler found in Asa's backpack. It is a rectangularly shaped sword approximately one meter long with a hole at its base for a handle.
Scalpel Sword (メス剣 Mesu Ken?): A sword made from a nearby scalpel Yoru uses when she battled Quanxi. It is a curve-shaped sword resembling a larger scalpel.
Soap Sword (石鹸の剣 Sekken no Ken?): A soap-themed sword made from a soap bar. Yoru formed this weapon by bringing a soap bar towards her telekinetically.
Straw Knife: A knife made from a discarded straw that Yoru attempted to use to slice off Denji's penis. It resembles a switchblade, although in some panels it resembles that of a combat knife.
Sushi Sword: A sushi-themed sword made from a sushi dish. Yoru used this blade in an attempt to strike Pochita from above when confronting him alongside Katana Man, but it proved useless against the might of the Chainsaw Devil.
Building Sword (ビル剣 Biru Ken?): A sword formed from a ruined building the Falling Devil attempted to launch onto multiple civilians during Denji's battle with the Fake Chainsaw Man.
Unspecified Sword Weapon: A sword Yoru wielded against the Falling Devil during their confrontation, which she used to slice her into pieces.
Michigan Sword (ミシガン州剣 Mishigan-shū Ken?): A sword formed during Yoru's climactic battle against the Chainsaw Devil. The creation of this blade notably caused the state of Michigan to collapse as documented by Fumiko Mifune.
Oregon Sword (オレゴン州剣 Oregon-shū Ken?): A sword forged from the state of Oregon during Yoru's battle against Pochita. Drawing power from the people of Oregon, Yoru can unleash powerful slashes that effortlessly cleave through her opponents with this blade.
Moon Spear (月の槍 Tsuki no Yari?): A spear forged from the American flag on the Moon. Using America's claim to the Moon as a homing system, Yoru locks the spear onto Denji like that of a homing missile during their battle. It is shown to cause immense damage when locked onto its target.
Chainsaw Motorcycle (チェンソーバイク Chensō Baiku?): A motorcycle weapon created by Yoru from a discarded motorbike. Its structure is directly integrated into Chainsaw Man, combining exposed metal, wheels, and chainsaw parts into a functional vehicle. It is fused with chainsaw components and wielded by Yoru to strike Denji during their confrontation.

Contract Trigger: When Yoru turns a Devil she "owns" into a weapon, she can enter into and activate any contract associated with that Devil and use them for herself. Yoru demonstrated this by activating the contract the National Pistol Association of America has with the Gun Devil and using it to activate an ability.

Gun Goddess (銃の女神 Jū no Megami?): After sacrificing the index fingers of approximately 40,000 of the National Pistol Association of America's 3.5 million members, Yoru transforms the Statue of Liberty into a grotesque crowned creature holding a rifle capable of firing giant bullets in the shape of severed fingers. This creature was able to destroy buildings and severely damage the Chainsaw Devil at Yoru's command (presumably killing hundreds of people with the bullet fired across the world), but not enough to affect a Devil equal to a Primal Fear, the Aging Devil.

Skillset

Swordsmanship: Yoru is a skilled swordswoman, being able to easily take down the contracted Class President with her sword.[41]
Spearmanship: Yoru also demonstrates her skills on using a spear during her fight against the reincarnated Eternity Devil.[48]
Gunmanship: After acquiring the Tank and Gun Gauntlets along with the transformed Statue of Liberty, Yoru demonstrates her ability to use their powers proficiently to fire bullets.[49][50][51]
Strategic Intelligence: Yoru prepared quite an elaborate setup in preparation for fighting Yuko, such as setting up traps and hiding weapons all around the school. This however wasn't of much use due to contracted Yuko's mind reading ability.[52]

Weaknesses

Anemia/Low Blood Amount: Yoru will suffer from anemia when she was fatally injured, which causes her to lose strength if she cannot replenish her blood supply. To counteract this, Yoru must consume a copious amount of blood to refill her strength

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