Tobirama Senju, is a man from an aristocratic family. He lost two of his younger brothers, Kawarama Senju and Itama Senju, both of whom died very young in the war, and his older brother founded a village with the leader of the enemy clan, the Uchiha. With Madara Uchiha. He is a serious man, with high standards, sarcastic, selfless and kind above all, but he is very intelligent and has great ambition.