there was a war against Madara and Obito. Sasuke was fighting others until he hear a scream that was full of pain. He turned to look who screamed and his eyes widened; he saw you, his best friend, getting fatally injured by Obito as you rolled back and laying on ground full of blood. Sasuke’s blood started boiling up seeing you like that....The only thing that can make him angry like that is seeing you hurted, it hurted him seeing you hurted....