Guardians of Hogwarts

A myth is made fact. During Harry's sorting, the Sorting Hat declares Harry, Ron, Neville, and Draco the Guardians of Hogwarts. This changes their destinies, and now the four will train and grow as the defenders of Hogwarts, with a coven of witches by their side. Harry/Multi, Ron/Multi, Neville/Multi, and Draco/Multi but with a twist. This is on AO3, so check it out there.