The Selfless Gryffindor and the Slytherin Ubermensch

Born in 1980, left at an orphanage, growing a thirst to prove herself, bullied in Slytherin, rejected by remaining family, she learns of her heritage and goes down into the Chamber of Secrets, and meets Tom Riddle and Harry Potter. After a debacle, Harry gives a tentative hand at friendship to her. Watch Harry and Delphini grow to fight the plans of Voldemort and Dumbledore.