Harry Potter and the Obnoxious Genius (слэш)

Harry worked for W.A.N.D., the Wizarding Association of National Defence. He liked his job, and he liked being a lonely, miserable, old bugger. But when he's assigned to protect Tony Stark he's unprepared for what he'll have to face: a nosy, interfering superhero intent on getting Harry a life, or perhaps just getting himself one.