Muramasa Neikan

Muramasa Neikan (佞姦 村正, Neikan Muramasa) is a male who used the powers of his Doll, Geifer, to fool the Shinigami of Yāolù into believing the he too was a Shinigami. He is the self proclaimed last of the Bounts.

Appearance
Muramasa is very snake-like in appearance; having an unusually pale tint to his skin, long white hair, and slitted, yellow, serpent-like eyes which are covered by his circular glasses. He dons a long black hooded coat with long, bell-shaped sleeves that hide his hands. Outside of his coat, he dons a similar outfit to Sōsuke Aizen only with inverted colors. He also has what appears to be a tail with a snake's head at the end, but this is later revealed to be his Doll, Geifer. Muramasa's appearance has a chilling effect on others. Most are unnerved simply at the sight of him, while others, even the strong of heart, are restless after being around him for a time. Even Sao Feng, the Emperor of Yāolù, prefers to keep his distance, as he can sense a dreadful killing intent coming off of Muramasa.

Personality
Muramasa is a very cunning being. He is shown to be able to execute his plans perfectly without attracting attention to himself or his plans. His deception was so good, in fact, that he was able to fool the entire Yāolù military as well as it's Emperor that he was a Shinigami for several hundred years without being discovered. Muramasa is capable of being calm and confident and is willing to disrespect anyone he pleases as he does not fear their retribution. Muramasa is not above using kidnapping and murder to gain the upper hand against his enemies.

While pretending to be a Shinigami under Sao Feng's command, he pretends to be the Emperor's most loyal subject in order to gain favor in the Imperial Court. His appearance combined with his strange personality seems to bother the Emperor, causing him to give Muramasa what he wants, so as to keep Muramasa away from him. Muramasa seems to have great hatred towards all Shinigami for the way his race was treated in the past. This causes him to live a life of revenge, plotting to show the Shinigami the suffering of his people.

He also seems to be interested in the limits of one's spiritual and physical bodies, and has preformed numerous human experiments to test these limits. Aside from making the Shinigami pay, Muramasa's ultimate goal is to be labeled the "ultimate being", similarly to Aizen. Due to the immortality of the Bounts, he never has to worry about his plans not coming to frutation eventually. Another of Muramasa's ambitions is to surpass, the previous leader of his people.

History
Muramasa was created along with the original Βount by, but refused to be gathered into the community she created for them, claiming that he liked the world for what it was and didn't want to be squished into one area of it. This allowed him to escape the initial massacre as well as the constant attacks the others faced from Hollows. Instead, Muramasa traveled to Yāolù and enlisted in the military, using the powers of his Doll to convince them that he was a Shinigami, where he heard of the extinction of the Βount from his new comrades. From then on he began plotting against the Shinigami to overthrow them.

Powers & Abilities
Soul Absorption: Bounts normally try to absorb the Human's soul after the person dies and is trying to pass on. But they are also capable of taking the souls of those who are living, to do so kills the Human.
 * Immortality: By absorbing Human souls, a Bount can live forever. When they absorb Human souls, they gain eternal life.

Space Manipulation: The Bounts are able to manipulate space after they have sucked a number of souls. Muramasa can use this to open a Senkaimon or to teleport.

Master Hand-to-Hand Combatant: Muramasa doesn't often engage in combat, and when he does, he usually employs  or his Doll. Despite this, on the rare occasions that he does use Hakuda, he has demonstrated mastery of it; easily catching his opponent's blades or fighting back unarmed. He can easily fend off multiple opponents and also was shown to block attacks from the supposedly superior skilled Kamui during his arrest trial.

To the untrained eye, he can seem to vanish completely from sight and reappear elsewhere.

Spirit Particles Absorption: As a Bount, Muramasa is able to absorb energy in the atmosphere to heal himself faster depending on how strong the concentration is and gradually increase his physical and Doll's might.

Bount Seal: As a Bount, Muramasa can use the Bount Seal; a seal not only able to seal up their Dolls, but also able to seal his spiritual power. It is because he placed one of these seals on his person that he was able to hide his true spiritual pressure hidden from the Yāolù militia, as well as Suzaku Kawahiru and his group of Ryoka. Body Modification Expert: Muramasa 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.


 * Organ Replacement Surgery: Similarly to, 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.


 * Snake Transformation: Muramasa has the ability to transform his body into a snake with arm-like appendages, which he can use to help with his escapes, or, by expanding the form's body, capture a foe and take that foe hostage. The inside of this snake form is resistant to reiatsu and will actually suck any form of reiatsu out of the victim being held inside. He can return to his human form at any time.

He hasn't yet revealed his true power, so his true reiatsu has yet to be revealed.

He can effortlessly use 90's level Kidō without incantation. Due to his decades of experience in Human experimentation, he has needed various barrier and medical spells and thus is a master at both fortes of Kidō combat. He can also use Kidō to manufacture without the use of a ritual or a live sacrifice.

Muramasa passed this sword off as his Zanpakutō during his time in the Yāolù military. He is very proficient with his sword and can easily fight on par with the likes of Raian Getsueikirite and Chūkin Komamura. He claims that he need only two slashes to bring a foe down.

Doll
Geifer (どくえき; German for "Venom"): Muramasa's Doll takes the form of a snake-like appendage, similar to a tail, coming out from the back of his coat. The snake is white in color, with similar markings around his eyes as Muramasa himself, only Geifer's markings are red. Muramasa has modified his Doll from time to time to strengthen it. It is the self-proclaimed "strongest Doll among the Βount". Like all Dolls, Geifer is released by the German phrase "Zeige Dich", meaning "Show yourself".

Unlike other Dolls, Geifer has two forms. The normal form he takes upon release is that of an enormous purple snake with black markings around his eyes. His eyes themselves have turned green. In this form he is several stories tall, dwarfing most Seireitei buildings. In this form, his personality is that of a loyal servant to Muramasa, obeying his every command with no questions. He is also very arrogant and will often underestimate his foe. His second form is still a giant purple snake, only now he has a cobra-like hood and several leg-like appendages that give him an appearance of an oriental dragon. In this form, his personality seems to be completely suppressed, with the only communication he gives being telepathic. This form is a direct result of Muramasa's forced modification of Geifer. It can be accessed when Muramasa commands, usually with various release phrases.


 * Memory-Altering Stare: Perhaps Geifer's most fearsome ability is the ability to create and remove memories with a simple look. This ability works even with Geifer in his sealed state. If someone so much as glances at Geifer's eyes, they become permanently trapped by his ability. From that point on, Muramasa is capable of altering their memories; adding in false ones or removing memories that would give away his plans. His victims are not aware of the change and are unable to do anything to prevent it. It is through this power that Muramasa was able to fool the military of Yāolù into believing he was a Shinigami; by implanting false memories of him releasing a Zanpakutō and using other Shinigami powers.


 * Venom: A bite from Geifer will inject the victim with poisons that are very life threatening. In his sealed state, the poison can cause paralysis. Once released, the venom of Geifer can cause cell degeneration on a mass scale, causing the victim to disintegrate soon after being bit.

Trivia

 * Muramasa is based only in appearance by Kabuto from Naruto.