The Kekkei Genkai (Bloodline Limit Nature) Shikotsumyaku is also called “Dead Bone Pulse”, Meaning “Macabre Bone Pulse” and it is the kekkei genkai of the wiped out Kaguya clan, which gave them the skill to control their possess skeletal structure (their osteoblasts and osteoclasts). Through infusing their calcium with chakra, they could control the evolution and properties of their bones to their liking. The skill seems to be exceptional amongst the clan members, as Kimimaro is the single identified user even prior to his clan being eradicated.
In fact, this power gives the user a special skeletal structure, as when Kimimaro was seriously ill, Kabuto Yakushi claimed there had been too little information on his body to give any remedial treatment. Afterward integrating Kimimaro’s DNA into himself, Kabuto was able to get access to this kekkei genkai which he uses via a doppelgänger of Kimimaro, which emerges from the center of his navel snake.
The main capabilities of Shikotsumyaku is allowing the user to control the rapidity of their bones’ growth in addition to the position of calcium deposits. This allows them to produce weapons of bones that can either stick out from any part of the body, or pulled out and used like hand held weapons. The user was also able to produce armor of dense bone beneath their skin. Without delay after the bone is pulled out, the broken skin heals. Even though it seems it takes a bit longer for the limb to become usable again or except the user re-grows the bones willfully.
They can even fire pieces of their bones as long-ranged projectiles. Any bone that they take away from the body instantly regenerates, as does the skin that is broken when the bones are removed. Users can enhance the thickness of the created bones, making them stronger than steel. This not only makes the created weapons very strong, but also makes their bodies practically indestructible; the bones can endure even a chakra-infused blade, which is commonly enough to cut through anything. The bones structure can also be hollowed out totally as revealed by the copy of Kimimaro which Kabuto had generate a temporary flute during his fight with the Uchiha brothers.
From what the two well-known users of this ability, Kimimaro and Kabuto, have shown, most of the techniques are named after flowers. Additionally most of them are also taijutsu-based sword dances, which are used for close battle and protection. Though, as Kimimaro established, the bones can also produce quite a huge volume, and likely grow up from each other, as a form of a ninjutsu (ninja technique), and that he can emerge from any of these bones. Orochimaru coveted this skill greatly, stating the kekkei genkai granted the user an impenetrable skeletal frame, which can defy any type of physical attack. In addition, should a Shikotsumyaku user ever go on the offensive, they could immediately turn their bones into the sharpest spear. Generally, the Shikotsumyaku is measured to be the ultimate taijutsu ability, which is held in high regard. In the manga, when Kimimaro extracts bones from his body, his skin rips wide open. In the anime, to censor the gore, small holes are opened when bones come out, which are big enough to allow the bones to fluidly pass through the skin.
Character in Screen: Kimmimaru, Kabuto, Elder Chiyo and Smurai
Resolution: High Definition 848×530 and 327×218 pixels