The Ghost Shinobi

A boy only of the age of 12 is stronger than the main 3, no village, barely any family, extremely strong with excellent chakra control and- decided the stay in konoha? He stays with naruto and for a feared shinobi he's oddly domestic.. what happens when someone powerful falls for someone who grows to be stronger? Idk stop asking me you know the drill at this point! I don't know!!!