Omegaverse Au

Naruto is Itachi's childhood friend and learns one day he is an omega, as he never presented early. He becomes a sensei and teaches history class, he sees a familiar face and it turns out to be Sasuke, Itachi's baby brother.

Sasuke had a crush on Naruto when he was a kid and took the promise to heart, he wanted to be with the blonde idiot. Though he is dishearted when he finds out Naruto doesn't remember him at first and their promise