One

(I do not own naruto, nor the cover image.)
(I know there are many Anbu Naruto fanfics, but I wanted to do one anyway.)

Naruto has been in Anbu since he was four, and commander at 8, already surpassing even the fourth hokage at his young age. He's a prodigy among prodigies, also having all five chakra affinities, yet one day, the hokage assigns the cold and cruel naruto with keeping an eye on sasuke, making sure he doesn't give into his revenge. Will naruto learn to open up to his friends, and maybe even reveal his identity to them? Will sasuke change him? Will naruto allow his feelings to seep through his stoic mask?
(This is my first ever fanfic, plz be patient!) :)