Blood Is Thicker Than Water

Reds once ruled the world, they thrived and almost demolished each other on many occasions. Now, new blooded humans have emerged and have taken over what used to be the red's. Now it's hundreds of years later and they rule the world, at least some of them do. The Gold bloods rule over all the other bloods and hunt the Black bloods. What is your story? What role do you play in this world?