you and itachi were childhood best friends and we're in ANBU black ops together.one day you were on a mission together and thing's went south, and He thought you died and since then he killed his whole clan except for his little brother, Sasuke.

One day he was walking down a path in the woods wearing his akatsuki cloak when he saw someone who looked a little too familiar... They were Wearing an ANBU black ops uniform from the village hidden in the leaves, the same place he left year's ago.