SHINIGAMI
Name: Mayuri Kurotsuchi
Gender: Male
Age: Unknown on both
Personality: Mayuri Kurotsuchi is a researcher and personifies the stereotype of the mad scientist. By his early actions during the Ryoka Invasion, he is displayed as one of the most sadistic and cruel Shinigami. He sees everyone and everything not as a living being, but as an object to be researched—including himself. He has little respect or regard for most others, and was even willing to turn his own men (who were not aware of his plans) into living bombs in an attempt to capture Uryū Ishida and Orihime Inoue for experimentation. He also withheld vital information about the Bounts from the other Shinigami in order to capture one as a research subject for himself.
It is known that Mayuri's favorite food is pike fish, while he does not like onion. One of his free-time activities is reading every character published in Seiretei Communication. He himself publishes a serialization in the journal, titled "Effective Medication for the Brain", which apparently contains detailed instructions on preparation of medicine and their application. Surprisingly it is highly popular among the readers.
In battle, Mayuri likes to play with his opponent, torturing them little by little until they can hardly stand. This was shown with both Uryū and his Espada counterpart Szayel. Every time he fights he uses it as an experiment testing himself and his opponent little by little. He also uses it to transplant microbes or other things in case they get away. Before engaging, though, he will make extensive research on his possible opponents to tilt the chance of winning to his side. It is seen that, before the Winter War, he is busy reading in the library with a note on the door saying, "Enter and Die." He's been doing this every time he fights, even since he fought against the Espada.
Appearance: 
Mayuri's appearance has a very skeletal look to it with a skull-like visage. His fingernails are blue and, with the exception of the fingernail on his right middle finger, are all short. The one long fingernail is as long as the finger itself. Mayuri is revealed to have blue hair and golden brown eyes when without make-up. He also wears a white hat with two ends that point to his right and a large purple scarf around his neck. His whole body, even his face and hands, has been painted black and white. He repaints his make-up every morning, as he always removes it before going to bed.
Abilities: Master Scientist/Inventor: As the head of the Shinigami Research Institute, Mayuri is a talented inventor and scientist, having created a number of devices or techniques to aid him in battle or otherwise. As Mayuri is the mad scientist archetype embodied, he has no morals or empathy in everyday life and apparently his work is devoid of it as well. He is willing to go to any lengths he feels are necessary to achieve his goals, and apparently cares very little for morals or the value of human life. He often takes no interest in the issues of Soul Society and prefers to engage in his research when such issues arise, unless personally ordered to do otherwise by General Yamamoto.
Master Strategist: Mayuri has a talent for being well prepared. He takes various precautions before engaging in personal combat with an adversary, usually studying them through his various methods in order to gain a clear advantage. He seems to always have a contingency plan if something doesn't work out the way he expects.
Body Modification Expert: It is implied that Mayuri has done extensive research on modifying bodies, and he has upgraded a variety of his own body parts to function as weapons or otherwise provide him with useful abilities.
Extension Arm: His left arm can extend out like a grappling hook. When the arm is attacked it explodes on impact, but with his regenerative serum, this is not a problem (though it does cause him serious pain.)
Hidden Kusarigama: He is able to pull part of his ear out to form a scythe attached to a rope-like ligament for use as a kusarigama. It is easily as sharp as a standard Zanpakutō, and he is quite skilled in its use.
Environment Melding Technique: Another one of Mayuri's abilities likely achieved scientifically is his ability to meld with the color and texture of the environment. It was shown when he was attempting to track the Ryoka in Soul Society. When he reveals himself, the topical camouflage flakes away.
Organ Replacement Surgery: Most impressively, he has demonstrated the ability to replace functional internal organs with false ones, a feat he performs on himself and his lieutenant to safeguard them from injury. This particular operation is conceived of and carried out in the span of less than an hour.
Master Chemist: Being the current head of the Research an Development Institute, Mayuri has otherwise been shown to be an adept chemist.
Superhuman Drug: Mayuri has manufactured a "superhuman drug" that can slow down a person's perception of time. The drug is kept in a bottle by him, but also inside Nemu's body, which is blue in appearance. It is able to make one second seem like 100 years for the unfortunate victim to whom it is administered. An undiluted dose of the drug causes the senses to speed up trillions of times while the relatively "slow" body fails to keep up, resulting in paralysis; on the other hand, it is implied that a diluted dose of the drug can greatly enhance the user's reaction speed. He even stated that a single droplet would have to be diluted 250,000 times to be suitable for use.
Hojiku-Zai (Regenerative Serum): Mayuri has also developed a "regenerative serum," which can regrow limbs upon injection, and looks like some sort of green chemical. It can also be used to heal less severe injuries, as seen with Uryū and Renji.
Tracking Expert: He expresses the fact that he merely needs a strand of a person's hair to find them. By using a simple chemical process he can discern the location of the person in question using their DNA is a reference.
Expert Swordsmanship Specialist: While not masterful in swordsmanship as some other Captains, Mayuri is skilled enough to hold his own in a fight. His expertise with his Zanpakutō lies in his effective use of its abilities while its in either its Shikai or Bankai release states, rather than his swordsmanship skill. As he relies on those abilities or his pre-planned strategies rather than actually engaging in melee combat with his opponent. Mayuri seems to be ambidextrous, as he wields his Zanpakutō in his right hand and his scythe-ear in his left (often simultaneously).
Kidō Master: As the Captain of the Twelfth Division, Mayuri is known for his mastery of Kidō. He is capable of releasing a destructive form of Kidō silently from the palm of his hands, blasting holes through walls. Shunsui has commented there was a rumor that Mayuri was one of the most proficient Kidō users in the Soul Society.
Flash Steps Expert: Mayuri was shown easily outrunning Uryū's Flying Screen Step technique after the latter stated it to be faster than flash steps. He could not, however, keep up with the Quincy when he entered the Final Form, making him at least an expert in the technique.
Great Spiritual Power: As the Captain of the 12th Division, Mayuri boasts a great amount of spiritual energy. He is noted to having amazing spiritual pressure that comes in waves.
Enhanced Durability: Mayuri has shown himself to have a high tolerance to pain as shown when battling Uryū Ishida, having almost half of his body blown off but continued fighting.
Liquid Form: When Mayuri's stabs himself with his Zanpakutō while in its sealed state, it has the ability to transform Mayuri into a liquid form. Doing so doesn't kill him, as it is a last resort technique, but instead simply leaves him unable to attack or be attacked, making it an effective escape tool. He commonly can move around in this form and speak as well. He reforms after a few days but without any of his previous body modifications. It's uncertain whether this ability is entirely the product of Ashisogi Jizō, since he specifically relates the ability to himself, not opponents. His various physical modifications may have something to do with the effect or it could be an effect of Zanpakutō modification.
Zanpakutô Spirit: Ashisogi Jizō's spirit takes the form of a baby-sized creature with a similar, though smaller, head to its Bankai state. It has regular arms and legs as opposed to the caterpillar-like body that his Bankai has. It also has wings similar to a butterfly and appears to be capable of flight. It also has a small amount of blue hair, the same color of Mayuri's. Ashisogi Jizō speaks in a series of garbled beeping sounds and can be heard saying "Bankai" in a very high-pitched voice.
Sealed Zanpakutô : Mayuri's Zanpakutō's guard is wrapped in a cloth, and has several spiky protrusions sticking out right below the blade, which appear to resemble leaves. The hilt is pink. Unlike most Shinigami, his Zanpakutō's sheath hangs directly in front of him, instead of to his side as they are commonly worn, through a visibly modified hook on the end of the hilt of Ashisogi Jizō.
Shikai Description: Ashisogi Jizō's blade glows and transforms into a deformed trident with curved, serpentine blades, the middle blade is straighter and longer than the side blades and appear to ascend from the guard which is shaped like a baby's head with hands clasped in prayer (as Ksitigarbha is depicted), all mounted on his sword's normal hilt which has more ornate spiky protrusions on either side, which resemble golden leaves right below the guard. The baby's mouth secretes a poisonous vapor in this form at various intervals
Shikai Abilities: 
The weapon works like the venom of a spider bite; when an opponent is stabbed by Ashisogi Jizō, it severs the brain signals controlling the neural impulses for movement in the limb's of the victim, regardless of where they were struck. But unlike regular paralysis, the pain receptors and nerve endings are unaffected by the weapon, so the victim can still feel pain, even in a paralyzed limb.
Release: "Claw Out"
Bankai Description: 
Konjiki Ashisogi Jizō: The Baby's head on the guard opens its mouth as it produces a giant creature with the body of a caterpillar in a red cape with a grotesque golden baby's head and arms with a silver halo hovering around its head, near the back of the halo are 4 bells, 2 on each side. It emits its own individual, red reiatsu upon release. When in this form his Zanpakutō returns to its sealed state. In this state the creature seems to follows Mayuri's verbal commands.
Bankai Abilities: The creature breathes a poisonous derivative of Mayuri's blood which is lethal to anyone who breathes it, aside from Mayuri and Nemu. The poison spreads through such a wide area, and it is almost impossible to avoid it. Konjiki Ashisogi Jizō's poison is very potent, as Szayel Aporro's body started to break down immediately after it was introduced. The poison has an antidote, which Nemu keeps behind her lieutenant's badge, and which Mayuri keeps on his person.[69] Mayuri can change the composition of the poison as well, ensuring that no foolproof antidote can ever be manufactured to cure it, and no immunity is developed against it. Even if the opponent does not breathe, the poison will still enter their body. So far, the only way to be unaffected by the poison is to repel it with a sufficient amount of reiatsu. Anyone within the vicinity of the person repeling the poison will also be unaffected.
Retractable Blades: Konjiki Ashisogi Jizō can produce numerous blades which can also extend from its chest, allowing it to run through and skewer opponents. This, used simultaneously with its poison makes Konjiki Ashisogi Jizō particularly lethal to anyone that cannot keep a safe distance, which is also difficult due to its immense size. Instead of the blades, it can also apparently devour an opponent after it charges into them, killing them.
Self-Destruct Protocol: Mayuri has also physically modified Konjiki Ashisogi Jizō itself so that it will self-destruct and return to its sealed state if it were to attack him
History/Background:Little is known about the early history of Mayuri, except that 115 years ago he was the only prisoner in the Maggot's Nest who was considered dangerous enough to necessitate confinement in a small prison cell, chained to the wall by his ankle. He would however one day be visited by Kisuke Urahara who was seeking his genius to become vice-president in the newly thought-of Shinigami Research and Development Institute, something that would automatically get him out of there. At first Mayuri refused, until Kisuke began teasing him with the fact that he had nothing to tinker with down there and that as vice-president he would inherit everything should something happen to Urahara.
9 years later Mayuri is seen with Kisuke Urahara and Hiyori Sarugaki walking through the Seireitei when they are greeted by 5th Division captain Shinji Hirako and his lieutenant Sōsuke Aizen. Mayuri shows a distaste for Shinji as he refuses to call Mayuri by his full name and only calls him by his first, which is too familiar for Mayuri's liking. He seemingly is uninterested in the conversation between Urahara and Aizen who explaining that the 9th Division has been sent on a special investigation to find out what is happening with the disappearances in the Rukongai.
During her brief time as a member of the institute, Hiyori served as a lab manager, which clashing with Mayuri who was then 3rd Seat & Vice-President of the Shinigami Research and Development Institute, over who has more authority under the Captain. The two constantly got into a ongoing argument about whose in charge prompting Hiyori to call in Urahara. He explains to her that with the disappearances occurring he has created a new type of Gigai. Before Hiyori can respond they are interrupted by the arrival of Todō the 6th Seat of the 9th Division. Urahara agrees to send a researcher over to the investigation site as per the request of captain Kensei Muguruma of the 9th Division. Urahara elects Hiyori to go to the site, to which she become irate and asks why cant he send someone less important, referring to lab assistant Akon. He questions if she should continue being a lieutenant prompting Hiyori to attack him though he simply dodges her. Though reluctant Hiyori gives in once Urahara explains that she is the only one that he can trust with the task.
After an incident that got Urahara and Tessai Tsukabishi banished and several captains and seated officers Hollowfied, he later succeeded Urahara in leading the Research and Development Institute as well as somehow becoming captain of the 12th Division of the Gotei 13.
He also experimented on Quincy, including Sōken Ishida, Uryū's master and grandfather, in his studies. He believed that upon Sōken Ishida's death the Quincy had been entirely wiped out, and was disappointed to learn that Uryū was a Quincy because he considered his study of the Quincy complete and did not want any further Quincy specimens.
At a meeting of the thirteen division captains is called for so that Gin Ichimaru can explain his suspicious actions. Gin, being one of the thirteen captains, should have had no trouble destroying Ichigo and his friends. Gin merely chalks it up to a mistake on his part. Though Mayuri and Kenpachi Zaraki argue over the possibility of him purposefully letting them go, which grows into a argument between the two until they are silenced by Captain-Commander Yamamoto.
During the Ryoka Invasion of Soul Society, Mayuri attempts to search for the Ryoka and use them as test subjects. During the search, Mayuri tries to give a unsanctioned interrogation to Ikkaku Madarame while he is healing in the 4th Division headquarters. Ikkaku refuses to tell him the details of his fight. Disturbed that Ikkaku has nothing to offer, he states that he will need to be punished for his behavior, though Mayuri is promptly stopped by Zaraki (who asks him since when does he have authority over the members of other divisions). Mayuri quickly leaves.
He eventually meets up with Uryū Ishida and Orihime Inoue, whom he tries to capture using his own squad members as bombs. After Mayuri blows up the last of his men he sees Orihime's Santen Kesshun technique has protected her and Ishida from the blast. Ishida turns his sights on Mayuri, who is now interested in studying Orihime because of her shield, asking if she would like to be his research subject. Mayuri, undeterred by Ishida, continues to add incentives to Orihime to become his subject by issuing offers he normally wouldn't. Mayuri then notices Ishida standing next to him pointing a bow, and tells him that he is pretty fast for a Quincy. Mayuri then states that they are a rare breed and he hasn't seen one alive for many years, but he notes that he has no interest in the Quincy as he finished studying their kind some time ago. When this causes Ishida to question who he is, Mayuri is taken aback at the idea that Ishida and his friends would invade Soul Society without doing their homework and at the very least they should know who the Gotei 13 captains were. Mayuri then gives his name, rank and position, realizing what they are up against, Ishida tells Orihime to run for it as he takes on Mayuri. Not about to lose a test subject, Mayuri extends his arm to catch Orihime but it is shot off by one of Ishida's spiritual arrows.
Mayuri is disappointed at the state of his extension arm and detaches it from his body much to Ishida's surprise. He then takes out and uses his Hojiku-Zai which instantly regenerates his arm further surprising Ishida. He then goes on to say that it really doesn't matter if Orihime got away he can always track her down and the sooner he does the sooner he can begin testing. Ishida fires his spiritual arrows at him though Mayuri dodges the first couple of shots and then uses Shunpo to maneuver to a nearby roof. Mayuri makes note that Ishida has been using Hirenkyaku, an advanced Quincy technique similar to Shunpo. Mayuri states that though he can use Shunpo to counter the technique it is tiresome to use and he can't have Ishida moving all over the place, thus he resolves to kill him. Mayuri then releases his Shikai and before Ishida can counter with a spirit arrow he is stopped by Mayuri's lieutenant Nemu who blocks him causing them both to be injured by Mayuri's attack. Mayuri is livid that Nemu had let go of Ishida after the attack in his way and hits her as she begs for forgiveness. Mayuri then turns his attention back to Ishida so that he can finish him off.
When Nemu begins to beg for medical help, he becomes enraged and goes over to her and begins to stomp on her for her insolence. When Ishida protests at Mayuri's treatment of his own subordinate, though Mayuri claims she won't die from her injuries as he created her body himself and tells Ishida that she is a construct entirely of his making and therefore his "daughter". He then tells Ishida to not dare try to tell him how to treat her, but Ishida still screams out in protest only to realize that his arm is paralyzed. Mayuri tells him what the special ability of his Zanpakutō is, before he stabs Ishida in his arm cause him to scream out in pain. Mayuri then tells Nemu to kill him but then realizes that she is paralyzed because of the attack as well and stomps on her again. Ishida screams that he should stop, prompting Mayuri to question whether his philosophy has to do with the Quincy pride that his people where always talking about before they died. Ishida questions him on what he is talking about and Mayuri details how once he studied the Quincy (though his studies seemingly only included every horrible and cruel way possible, more akin to torture) and had ended his study years ago, he detailed that before dying they would always swear on the pride of the Quincy. Ishida listens on in absolute shock as he hears of the butchering of his people. Mayuri then offhandedly reveals that he was the one who orchestrated the death of Uryū's grandfather, Sōken Ishida and even shows him a image of his grandfather.
Ishida is enraged by the truth of his grandfather's death and swears to kill Mayuri on the pride of the Quincy. He then uses an advanced and rare Quincy technique called Ransōtengai, to control his paralyzed body like a puppet. Mayuri notes that he had never actually seen the technique in any of the 2661 Quincy he studied and is surprised that someone so young can use it. Mayuri then takes out his hidden Kusarigama and resolves that since he is starting to find Ishida interesting, he will keep him alive to study as well. But much to Mayuri's surprise, Ishida removes his Sanrei Glove to gain the power to defeat Mayuri.
Mayuri is utterly surprised as he has never seen this technique before and is unsure of what even happened. He then notices that Ishida is absorbing the surrounding structures, then deduces that since everything in Soul Society is made of Spiritons, he is absorbing them and turning them into strength. Mayuri then tells Ishida that he has gone far beyond the limits of Humans, but Ishida's only response is the creation of a complex bow construct with which he fires a spiritual arrow, which Mayuri dodges. To his surprise, Ishida appears from above and shoots him, causing a large explosion. Ishida offers to spare Mayuri if he apologizes to everyone and never appears in front of him again. He threatens to shoot him with a spiritual arrow three times stronger than the last shot if he does not. The previous arrow grievously injured Mayuri, having destroyed his left arm. Now enraged, he chastises Ishida for his cockiness and declares that he could match his power, and releases his Bankai. Mayuri explains that the poison his Bankai releases would surely kill him, though Ishida states that his arrow will reach Mayuri long before his Bankai's fatal poison can be released. Mayuri sends his creature charging at Ishida, who fires his arrow, splitting it in half and shooting a hole through Mayuri's abdomen. Despite the fatal injuries, Mayuri still lives and much to Ishida's surprise, stabs himself in the throat with his Zanpakutō, allowing him to use its ability to turn himself into liquid so that he could escape, seeping into the cracks of the area.
Later, he hears of Isane Kotetsu's announcement of Aizen's treachery after reforming, but upon being asked by Nemu he refuses to get involved, saying that he is not interested.
Mayuri later appears in Hueco Mundo to assist Renji Abarai and Uryū Ishida in dealing with Szayel Aporro Granz alongside his lieutenant Nemu.
Szayel attempts to use his Resurrección's voodoo ability & at first seemed to have easily beaten Mayuri. Suddenly Mayuri stands up & taunts Szayel, so he continues to destroy organs, but this time it had no effect. As it turns out, Mayuri had taken precautions against this ability by implanting himself with fake organs, having studied the technique beforehand using data from bacteria he implanted within Uryū during their last battle (much to Uryū's annoyance). Szayel takes Nemu captive, but Mayuri releases his Bankai and devours Szayel with it. Szayel uses the rebirth power of his Resurrección to recreate himself inside Nemu, but in doing so is affected by chemicals contained in Nemu's body. Mayuri is highly intrigued by this new power, but wonders if there is more than that. To give him what he asked for, Szayel uses his possession ability to control Mayuri's Bankai, but Mayuri already had countermeasures set in place for just that possibility; his Bankai self destructs, reverting back to its sealed state.
Mayuri, disappointed at Szayel's lack of any further abilities, explains that by recreating himself inside Nemu, Szayel is now dosed with a sense-enhancing chemical that he instantly names a 'superhuman drug', as it were. The drug increases Szayel's senses to the point that his body falls grossly behind and cannot move, paralyzing him as minutes become centuries. Mayuri then berates Szayel for his statement as a scientist that he was the perfect being. He then proceeds to pierce Szayel hand and stabs Szayel's heart with his Zanpakutō, wishing him a pleasant eternity, before breaking off the blade as the ultimate torture for Szayel and also as punishment for his Zanpakutō striking at its master.
After searching for Szayel's laboratory throughout the rubble, he realizes that he cannot ask Nemu for help. Musing that she is such a "pain in the ass", he revives Nemu with rather odd and possibly very explicit means and has her dig out Szayel's laboratory, within which are a pair of bodies suspended from the ceiling. After this he continues to to heal Uryū and Renji, the latter being healed first so he could go and help the fight. After he is finished healing Uryu he gives him an anti-Arrancar mine that he invented.
When Byakuya Kuchiki tells Ichigo Kurosaki to go back to Karakura Town, Ichigo complains that he could not get back that easily on his own and that Kisuke Urahara was not there to open the Garganta. Mayuri then suddenly appears behind the group with Nemu pushing a loaded wagon behind him and complains about the fact that Ichigo is constantly fixated on Urahara. He then notes how Ichigo used no honorifics to address him, but muses about the fact that he was better than Byakuya and Kenpachi, who would address him using only his given name.
Byakuya takes notice of his unusually lenient mood and asks if it has something to do with the wagon behind him. Mayuri confirms this and tells that he is in a good mood because not only has he found some "spoils of war" but at the same place he was also able to analyze the structure of the Garganta. When Ichigo questions his statement, Mayuri begins to rant about what he had learned and orders Nemu to make preparations to send the substitute Shinigami to the Human world. When Ichigo further complains, Mayuri explains to Ichigo that this process was an experiment, that Ichigo is "Test Subject Number 1" and therefore, he has no right to refuse or to accept.
Retsu Unohana then arrives and says she'll accompany Ichigo back. Mayuri is surprised that she'd offer to be a test subject too, but she smiles and says that she has faith in him and that she believes the experiment will be a success. Besides that, if Mayuri failed to make a Garganta, even after analyzing information found in Hueco Mundo, then Urahara would laugh at him. Mayuri reminds her that he could close the Garganta during the transfer, which she merely acknowledges as being true. Unohana only says that she expect no less. He then opens the Garganta to let Ichigo and Unohana through.
Before Ichigo leaves with Unohana, Ichigo tells Mayuri how he is similar to Kisuke, which infuriates him. After Ichigo leaves, Mayuri comments to himself how fascinating Ichigo is and how he will formulate a plan to torment Ichigo. Byakuya then asks Mayuri why he didn't go to the Human World as well. Mayuri merely replies that there are multiple more interesting specimens in Hueco Mundo and will simply use the Garganta after the war to study the living world more. Byakuya then suggests that Mayuri has faith in Ichigo's abilities to end the war.
Mayuri has been studying the effects of "Ender" as well as the Iramashas. He has taken quite an interest into Kin Iramasha, as well as Tsubine's "Seven Swell".
Thu Apr 26, 2012 2:59 am by Aivee
Subject: The Mad Scientist, Mayuri Kurotsuchi 
