Kaguya (Naruto)

The kaguya are one of five species of hybrids between otsutsuki and humans, their "brothers" being hyuga, uchiha, senju and uzumaki, today they have been completely extinct since the last individual died of a fatal disease.

History
The only thing you know about their origin is that they arose after the alien Kaguya Otsutsuki and the human Tenji related and generated descendants, however, it is not known who these descendants are, since the only descendants generated by Kaguya were Hagoromo and Hamura, and they only spawned the uchiha, hyuga, senju and uzumaki, so it is not known when and how the kaguya emerged. Some members possessed and aroused something that was called Kekkei Genkai, each descendant species of otsutsuki had a different one, that of the kaguya was called shikotsumyaku, which consisted of removing the bones from their own bodies and hardening them to use them as weapons, this it was considered rare in the members and was considered dangerous even for the members themselves. At some point, due to their arrogant and warlike nature, the kaguya became a clan, that is, a family of ninjas. One millennia after the creation of the clan, Kimimaro Kaguya was born with the ability to use shikotsumyaku, they then trained Kimimaro to be the strongest of the clan and one day, Kimimaro and the entire clan started an attack on Kirigakure to assassinate a good part of the people who lived there, all to show their superiority and warrior instinct to others, however, the clan was completely butchered with the only survivor being Kimimaro, who was found by Orochimaru and became his servant for experiments. In a fight against Gaara Kazekage and Rock Lee, Kimimaro ended up trying too hard and accelerated the process of the disease he had contracted, dying and causing the end of the kaguya.

Biology and appearance
In general, kaguya are practically the same as humans, however, with some differences. Most kaguya have two red circles painted on their foreheads, and their hair parted in half by a "zig zag" line, they have no eyebrows and almost always have black hair and white skin. For some reason, Kimimaro is quite different from them, having long, white hair.

Shikotsumyaku
Shikotsumyaku, is a simple technique to explain, the members that have this ability can manipulate their skeletal structure and remove it from their bodies at will, apparently they have a body structure very different from normal kaguya, since a professional medical ninja he was unable to say whether Kimimaro's disease would kill him or not, because his interior was very different from human and was difficult to compare.

Culture and society
The Kaguya apparently have a tradition of wearing long, white clothes, as well as securing the side of their hair with a band. They have a very barbaric and warrior nature, since they started wars against entire villages to show their strength, from what is seen in the series, the kaguya have MUCH more male than female, since literally no women of this species were seen on the Serie.