Sosuke Uchiha is a member of the newly recreated Uchiha Clan within Konohagakure, and one of Sasuke Uchiha's and Amaru's five children, being the oldest of the five. He's a Genin level Shinobi in the village and a member of Team Tomoko, under Chisei Tomoko Sensei. Despite his young age, he shares many of the prodigal traits that his father did when he was his age; he unlocked his Sharingan at the age of 10, even younger than Sasuke, becoming the third youngest Uchiha to unlock this powerful Dūjūtsū, third only to his uncle, Itachi Uchiha, and his ancient ancestor, Madara Uchiha. He also leaned Fire Release at the age of 8, same as Sasuke, and then Lightning Release at the age of 12, one year younger than Sasuke.