1march2012 please look at profile. When he was young, Harry Potter secretly watched Naruto. After his escape to the school's roof, he trained himself in the arts of the ninja, Naruto style. Technically not a crossover.
An accident in a zoo when Harry was six left him different from others. Abandoned by the Dursleys, Harry learned to live by himself. Ten years later the Wizarding World finds him, How do they react to ‘The Angel’?