Legend of Susanoo no Sasuke

AU Dying to protect his best friend, Uchiha Sasuke figured this would be his consequence for all his mistakes, to slowly die in the very darkness he embraced. However not even he expected to wake up in a world filled with people able to use this energy called Magic. Nor did he expect to be saved by a girl who, to his immense annoyance, calls him Uncle Sasuke! Sasuke x ?