Untitled Part 1

when Naruto was little he was beaten by his family, but he never knew why. on his fifth birthday, he just snapped. after an incident, he is taken into the thirds custody and placed in a cell in the deepest part of the Hokage tower. what happened to him? what happens when he finally comes in contact with people? (boyxboy. fluff, smut, lemon. naruto x Kurama)