The three kage bunshin took their places at the corners of the medical seal complex, with me at the head, and another clone unsealed Kaguya's body and immediately slapped a paralyzing seal on it. But I didn't pay attention to that anymore, activating the complex and getting to work.
The raiton wound didn't bleed and was very thin, only a couple of millimeters wide, but it had a lot of negative effects on the surrounding flesh, like charring from the heat, unless the moment of contact was too fast for more extensive damage.
Entering the lung, Chidori Eiso's blade cut it askew, severing the ribs, spine and esophagus, hitting the top of the second lung and exiting through the shoulder, only miraculously not hitting the heart, which made my task a little easier, but even so, I had a difficult task to restore all the damaged tissues and bones, to start the work of the damaged organs, while the clones took over the reanimation and maintenance of the body's performance with the help of the complex.
And it was necessary to do it not by hack-and-slash, as it was done earlier in the day, just to be quick and the patient who came back from the dead didn't die immediately again, but much more qualitatively, until the restoration of at least partial working capacity of the body - otherwise how would it be possible to study the use of kekkei genkai, if the bearer turned out to be disabled, unable to use chakra and move fully?
I was very surprised when the spinal column of Kaguya's newly launched body began to actively absorb medical chakra and regenerate right before my eyes, including the spinal cord.
And as if that started a chain reaction, the jonin's body began to recover on its own, needing only a little help and direction from me, even though the process was much slower for the soft tissues than for the bones.
Even the bony subcutaneous segmental armor of the torso and the protective covering around the organs were recovering, though this was all clearly the direct work of the shinobi with his kekkei genkai, rather than the natural evolution of the body.
I didn't even have to apply Chikatsu Saisei no Jutsu (Healing Regeneration of Life Force), absolutely necessary for any other person who had suffered similar mortal wounds.
Watching the regeneration process, I could only shake my head - its presence was obvious, because when growing bones from any part of the body, soft tissues would be damaged anyway and it should be possible to regenerate them independently, not just bone tissue.
Of course, the special structure of muscles, adapted to pushing the grown bones out of the body, reduce the collateral damage, but the skin and vessels in it are still pierced, and I have not observed on Kaguya long-term consequences of self-inflicted wounds on the hands, and the skin was restored quite quickly, if only the bones were pushed out or returned to the original state.
Of course, as practice showed, even such a regenerator can be killed by inflicting quite extensive damage, but if the properties of such a body are combined with the capabilities of iryonin of the first degree, then you get a literally unkillable monster, capable of repairing even fatal damage, as long as there is chakra. I was drooling at the mere thought of the possible prospect of adopting at least some of the demonstrated properties.
As Kaguya had shown, I was only strong at medium and long range without training, and if the owner of such a kekkei genkai came within melee range of the village, when I was without my equipment and sensor abilities would not help, I would be in a very tight spot - iryonin, not iryonin, but the enemy still had to reach to turn him into an invalid with a couple of touches of Chakra no Mesu (Chakra Scalpel).
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