Itachi Uchiha in and alternative universe where he didn't slaughtered the whole clan Uchiha. He's a shinobi and after the dead of his parents he's been taking care of Sasuke all on his own. He and his family had been targeted by a criminal group of ninjas, but the night they attacked their house, Itachi and Sasuke had been out, making them the only survivors of their family and losing their parents on the attack.