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| “ | Sensei would never say this. He would insist on not involving unrelated people in his revenge. But being just like him would be too boring. I need to become something unique. So let’s try doing the opposite! Let’s choose the path Sensei never would have! Just killing the bastard who stole everything from me wouldn’t be enough. I need to steal everything I can from him, kill everything of his I can, and take away everything he holds dear! Now, that… that would be the perfect time to deliver the finishing blow!!!! | „ |
| ~ Yuiitsu Kihara's villainous breakdown |
Yuiitsu Kihara is a major antagonist in the A Certain Magical Index franchise, serving as the secondary antagonist of A Certain Magical Index: New Testament and a supporting antagonist in A Certain Scientific Mental Out.
She is a member of the Kihara family who appeared at the end of the Baggage City incident to negotiate with the cooperative organizations that had rebelled against Academy City. Yuiitsu is also Noukan Kihara's devoted student and the person who turned Hisako Yakumi, one of the members of the Board of Directors, into a mad scientist by implanting her thought patterns into Hisako. She is the archenemy of Kakeru Kamisato due to the latter beating Noukan Kihara to near-death.
She is voiced by Mai Nakahara.
Appearance[]
Yuiitsu is a young woman with shoulder-length black hair and matching eyes. She wears a white labcoat over a ready-made cheap suit, making her look like she's going to a job interview.
Personality[]
Like the rest of her family, Yuiitsu is a very intelligent, sinister and psychopathic individual who does the most twisted things in the name of science. She is very manipulative and ruthless, frequently using people for her own needs in experiments, as shown when she forcibly implanted her own intellectual curiosity into an unsuspecting Hisako Yakumi. She also released Kakine into Academy City following his revival, not caring that he would cause untold destruction, because she was curious and wanted to observe what he would do.
Despite this, Yuiitsu also has a softer side to her, displayed by her great admiration for Noukan Kihara. She has shown to genuinely care about Noukan and treats him more as her teacher rather than a pet dog, even mimicking some of his traits, such as his tendency for romance, and describing things between like and dislike, and good and bad. She was even driven to tears after seeing Noukan mortally injured and placing him into cold sleep. Eventually, Yuiitsu becomes extremely vengeful and vindictive, seeking revenge against everyone and everything that brought him to that state. She also desires to surpass Noukan and become a "unique" Kihara.
Moreover, it also seems that she shares a similar relationship with Gensei Kihara, whom she affectionally refers to as her “grandpa”, as displayed by her noticeable grudge against Misaki Shokuhou after defeating him during Daihasei Festival Arc.
Biography[]
Nothing much is known about Yuiitsu's background prior to her introduction in the series.
Powers and Abilities[]
Powers[]
Yuiitsu using Sample Shoggoth to place World Rejecter on her right hand.
Sample Shoggoth: Sample Shoggoth is an artificial parasitic life-form that appears as a pitch black amorphous mass resembling an octopus floating in the deep sea, a soft piece of fat cut away with a knife or loose rubber film melted from the inside. Its surface is covered in bubbles with some things, not quite eyeballs or suckers, which blink with a damp yellow or green light that resembles glow-in-the-dark paint. It dissolves the fat inside the host's body and slips into the empty space, maintaining their human silhouette. It also handles the storage and distribution of nutrients that the fat would have done. The parasite can partially leave its host to protect it from danger, taking any form it desires and producing countless fangs and claws. It is actually a variety of Academy City’s #2 ability, Dark Matter, but it ignores that esper’s will and can be controlled by a third party.
Yuiitsu obtained a sample of it and implanted it on herself. Unlike its previous host Patricia Birdway, Yuiitsu has full control of the Sample Shoggoth, being able to willingly project it from her body in numerous shapes like spears, thin threads that can easily slice off a human hand, a large stream sprayed towards the enemy, "legs" to cling and crawl on walls, a whip-like black torrent and even a paraglider/pair of wings to sour through the sky. She can also use it to quickly perform surgery, being capable of attaching Kakeru's right hand to her right arm with a special sewing technique that connects all the nerves and blood vessels to allow her immediate use of the hand. She can also repair the damage inflicted on her body. She also stated that she could use Sample Shoggoth to kill someone by slowly melting away their fat from the outside.
Yuiitsu and her fake Magic Gods
Fake Magic Gods: The combination of Sample Shoggoth and the St. German virus allows Yuiitsu to produce imitations of some of the Magic Gods exiled by World Rejecter (Niang-Niang, Proserpina, Chimera, Nuada and Tezcatlipoca) and their attacks as part of a bluff that she had the real ones at her disposal - Sample Shoggoth's shapeshifting abilities allowing her to produce fake models with their forms and the attenuated St. Germain virus allowing her to use magic related to carbon and plants similar to some of the original Magic Gods' spells, but much weaker in power.
- Niang-Niang: The fake Niang-Niang can transform each of her ten fingers into Pao-Pei, weapons (swords, spears, axes, staffs, etc...) that can freely extend and retract up to at least several meters .
- Proserpina: The fake Persephone can shoot masses of darkness the size of baseballs at high speeds like a machine gun. The projectiles bend the light around them, and are likely based on the pomegranate seeds from Proserpina's legend. The effects of the projectile are unknown, but Salome speculated that the fruit forcibly brings one to the underworld/to death, with no escape possible once they get inside you. However, this is doubtful since it's a mere imitation that pales in power to the real magic Proserpina would have as a magic god, similar as to how Niang-Niang's Pao-Pei are much weaker than the original's.
Yuiitsu using World Rejecter for the first time.
World Rejecter: Yuiitsu stole Kakeru Kamisato's right hand, gaining access to World Rejecter, a mysterious power that resides on his right hand that can be used to banish/exile targets (From living beings to powers and inanimate objects) to unused portions of the world, as long as some conditions are fulfilled. The biggest condition seems to be that the target has to hold conflicting desires, or in the case of powers and inanimate objects, the source/creator has to have conflicting desires. While it works on contact like Imagine Breaker, it also has a ranged function, being able to banish anything that is touched by the right hand's shadow. There's a slight time lag between uses, and it seems to be activated by saying the phrase: "Do you wish for a new world?", though Kakeru has been able to use it without that trigger by simply moving his right hand.
Abilities[]
Gifted Intellect: Similar to all Kiharas, Yuiitsu possesses considerable scientific knowledge and intellect. Her researcher's mind is capable of taking into account conditions, tools and possible methods, and calculating the values and steps in order to reach a goal, even when Yuiitsu herself is under immense distress. She is capable of making careful plans for hypothetical scenarios, as required in the position of Academy City's Hypothetical Disaster Planning Calculations Director. She also has some degree of forensic and investigative capabilities.
- Expert Tactician: Even while under heavy mental stress she was capable of accurately analyzing the injured Kihara Noukan, calculate all the problem points and compare them to her available options to try and find a way to heal him. Copied one of Amata's martial arts techniques, developed a way to tame Sample Shoggoth and attenuated the St. Germain virus, thus gaining access to magic, all for a plan that allowed her to successfully steal Kamisato Kakeru's right hand and World Rejecter.
Master Martial Artist: Yuiitsu is a rather competent martial artist, being capable of fighting Salome and Touma Kamijou in close quarters. She was also capable of reading the path of Salome's giant invisible blade from the motion of the particles in the air. She imitated one of Amata Kihara's techniques, which uses the shockwaves propagating from the multiple points of contact of Yuiitsu's strikes. These shockwaves will collide within the opponent's body and create deadly bubbles inside their blood vessels, which will cause normal human beings to quickly fall over dead. Yuiitsu can also use her lab coat to slightly divert the path of a slash or a similar attack to avoid a lethal blow, similar to how shields are used to divert a blade instead of blocking it, though this slowly accumulates damage on the lab coat until it can no longer be used as a shield of cloth.
Equipment[]
- Modified stun gun-like device: A small card-sized device resembling a stun gun that uses amplification circuits to send out a high power pulse to destroy electronic circuits and unlock doors without producing any noise or light. Yuiitsu has further modified it to destroy the electric signals stored in cerebral nerves and render them unreadable, thus erasing the short-term memories of anyone within ten meters and immediately knocking them out, though this use does produce bluish-white sparks.
- UL Exploder: Likely standing for "UNDER_LINE Exploder", it is an oddly-shaped gun resembling a starting pistol for a race, which gathers and detonates the UNDER_LINE nanodevices in a false dust explosion and for a very short time creates a space which can't be monitored by the network. As such, the UL Exploder only works inside Academy City. The device was also used by Yuuitsu to boost herself by shooting behind her.
- Mental Out FIVE_Over OS Technology: Yuiitsu obtained a sample of the the FIVE_Over OS real-time military camouflage technology and magnetically controlled monitor, which she used to take the place of one of the students in the school Kamisato Kakeru was attending to, achieving an almost perfect disguise that managed to initially fool even a close acquaintance of the girl she was impersonating. She can also use it for camouflage by blending with the landscape or her surroundings.
- Attenuated St. Germain Virus: Yuiitsu obtained a sample of the St. Germain virus. She successfully cultivated the black pill-shaped sample in a Petri dish and attenuated it, allowing her to use it for her own purposes in a safe manner. She used the virus to rearrange and overwrite her own brain to trick World Rejecter's recognition and avoid the power rejecting her. She also can apparently insert the virus into other people to infect their brain from within and kill them by making them take the bright red pill her attenuated virus uses.
