The Kaguya clan hailed from Hidden Mist and they were known for their love of battle. They foolishly decided to challenge their home country and they were all wiped out save for Kimimaro. This clan has the ability to manipulate their bone structure, this ability is called Shikotsu Myaku (Corpse Bone Pathways). They can remove their bones at will to create weapons as strong as steel and also use their abilty to spurn the creation of new bones.