This story is called vampire love. I do not have a beta so please bear with me. I haven't written in a long time and don't really know how long this story is going to be. But here's the introduction.
This isn't really a traditional Harry Draco fanfiction. There's a bit of abuse but not much and its not lets jump in bed together and shag our brains out either. Draco knows he's a vampire, Harry doesn't. And Draco "rescues" Harry after his change.
I'm not very good with summaries and such but I hope this helps you to understand what this story can be. I hope to have the first chapter up in a couple of hours.