CSM: “An deadly date with the war devil”

Personality

Yoru is first shown to be very confident and prideful, treating her opponents as mere warm-ups and confidently vowing to take back nuclear weapons 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.[1][2] 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 feeling 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 Fami, 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.[3] She is very insecure and gets royally offended whenever her strength or intellect is questioned.[4][5] 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.

Appearance

Near-death State

Following the battle with the Four Horsemen and Weapon Devils, Yoru was also reduced to a “near-death state”, due to Pochita consuming most of her body. In this state, she appears to have a bird-like body, similar to a dark colored owl or potoo with a piercing gaze. While her bird form is similar to Pochita's dog form, her true form is still unknown. The recognizable ringed horseman eyes are also present in this form.

Fiend

After taking over Asa's body and occupying half of her brain, the War Devil took on her appearance, but with added facial scars across her 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.

Abilities

As a Fiend, Yoru can not make contracts. However, she still has all the other standard Devil abilities, such as 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 Horsemen, even strong enough to prevent the upcoming apocalypse. 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. [14][15] Adding to that if Yoru is already in control but Asa get's frightened she'll lose control and be unable to regain it until Asa calms down.[16]

Thanks to this unusual circumstance Yoru is able to feel human emotions despite being a Devil.[17][18] Whoever isn’t in control of the body will appear as a hallucination to the other and can even communicate to them.[19] In addition Yoru is able to read Mitaka’s thoughts and access her memories while the latter is unable to do the same.[20][21] 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 videogames), has greatly diminished her original strength.[22] 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 horsemen. During the events of Chainsaw Man Church arc, Yoru experienced a significant power boost due to the fear of war rapidly rising. Physical Prowess

Enhanced 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. Enhanced 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.[23] Enhanced 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.[23] 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.

So far the only types of weapons that were created have been either melee weapons, such as swords and spears, or explosives such as hand grenades. It is unknown whether Yoru can create more advanced weapons such as modern firearms.

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 (田た中なか脊せき髄ずい剣けん, 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.[24] The blade is sharp enough to easily cut through Devil-enhanced flesh with ease.[25] Flesh Hand Grenade (手しゅ榴りゅう弾だん, Shuryūdan?): A hand grenade that the War Devil created using the arm from the contracted Class President.[26] And it is shown that it is able to detonate like a normal grenade.[27] Yuko Leg Sword (ユウコ足あし剣けん, 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.[28] Left Tank Gauntlet (戦車タンク左腕鎧レフトガントレット, 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 bullets using the gauntlet. Right Gun Gauntlet (銃ガン右腕鎧ライトガントレット, 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.

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 (鉛えん筆ぴつの槍やり, 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 (定じょう規ぎ剣けん, Jōgi Ken?): A sword made by a measuring ruler found in Asa's backpack. It is a rectangular shaped sword approximately one meter long with a hole at its base for a handle. Scalpel Sword (メス剣けん, 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 (石せっ鹸けんの剣けん, 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.

Contract Trigger: When Yoru turns a Devil she "owned" 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 (銃じゅうの女め神がみ, 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 lives with the bullet fired across the world), but not enough to affect a devil equal to a Primal Fear.

Skillset

Swordsmanship: Yoru is a skilled swordswoman, being able to easily take down the contracted Class President with her sword.[25] Spearmanship: Yoru also demonstrates her skills on using a spear during her fight against the reincarnated Eternity Devil. 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.[29]