Saion is an odd man. He is constantly at war with himself as he was born to be the heir of the side branch of the Kaguya Clan. His mother is cruel and tries to push her twisted ideals on him. He doesn't want to anger his mother, so he blindly follows in her footsteps. It doesn't help that he has been shielded and lied to about his up-bringing and practically brainwashed to be his mothers second hand man despite her treatment towards him. His uncle Tetsu Kaguya convinced him (and tried to convince the other twin brother Soren) that his mother Mifune is actually a loving mother but just shows him only the tough sides because of how cruel the shinobi world can be. He blindly believes this because his uncle, and aunt were the only ones to ever show the twins any kindness. They didn't know their father as they were too young to remember him when he died. So they grew up with a very strained family dynamic. Saion has kindness in his heart and soul, but also has anger issues and carries some of his mother's cruel ideas. He believes that the Kaguya Clan should rule the world and create peace for every nation, even if it means starting a war. He wants there to be love, peace, and harmony in every nation, but the way he wishes to obtain this love is by world domination, which is an idea passed down through generations of Kaguyas. Though he is jaded heavily by the cards he was dealt, his heart can still be persuaded into doing the right thing, but it would take a lot of potential devastation to be able to understand what peace truly means. His twin brother Soren is almost the exact opposite of him. Whilst he does have some ideas of wanting peace and kindness in this world, he doesn't believe that it will happen through violence. He is more of a pacifist than his elder brother. Though he was a part of the Hunter-Nin, he was only doing it to please his mother as she attempted to raise him as a killing machine. Soren no longer lives in the Village Hidden in the Mist as he deserted the village, becoming a rogue ninja to go live in the Village Hidden in the Leaf where he could seek asylum from his cruel family's ideations of "peace." Saion is a Jonin now and is training to be the next lead of his clan. He is married to Kaguri Uchiha and has a son named Tsukuya Uchiha (who at this point is only 7 years old) who will also one day be the next heir to the clan.