Sasuke is introduced in the third chapter of Naruto 's manga as a young ninja assigned to become a member of Team 7 alongside Naruto Uzumaki and Sakura Haruno . The trio are trained under the guidance of Kakashi Hatake . Although Sasuke is antisocial , he starts caring about Naruto and Sakura . During a mission , Sasuke awakens his Sharingan -- his clan 's inherited ability to see through illusions -- which allows him to learn imperceptible movements at a superhuman rate . It is revealed later that Sasuke is the sole survivor of the once - powerful Uchiha clan of Konohagakure . He , at the age of seven , survived the massacre of his clan perpetrated by his brother , Itachi , who spared Sasuke 's life because he did not consider him worth killing . Sasuke seeks strong fighting opponents to reassure himself his power is growing .

Question: how old was sasuke when his clan died
Answer: seven