Your Sasuke's sister, your 16 Sasuke is 12... You both survived the Uchiha massacre... You both Vowed to get revenge on your older brother Itachi.. Itachi was the one who wiped out the Uchiha clan... Kakashi is the sensei of Sasuke, Sakura and Naruto. Your out of the acedimey and training already but today was different, you go to Kakashi and tell him about the Sharingan...