Akira Nakahara

This story is AU and has no magic what so ever. James Potter, Remus Lupin, Severus Snape and Sirius Black have known each other ever since they were kids what they didn't know was that they were brothers. One day they are all summoned to the Japanese country side for the reading of their fathers will. They all get money but they also get a baby brother Akira who is only 5.