Dragon meets Vampire

Summary: What happens if you put the coolest guy with a bunch of hungry thirsty vampires?
Ryoma Echizen is not your average kid that just plays tennis and drinks ponta. He is half dragon and mermaid. He lives with a family full of supernatural creatures that even his tennis playing friends are not aware of. But when he finally is in his high school year he enters a new side of town with a couple of supernatural creatures of its own.
Join Ryoma Echizen as he meets one of the most sadistic, cruel, and sexy vampires in town.
I do not own anything except the story, I mean come on its a fan fiction.
Crossovers with some of vampire knight and many others.