Chiya used to be a Saiyan when she was kidnapped by the first Grand Supreme Kai named Ruan. He controlled her and transformed her into a demon named Blood. She was then locked in Hell along with Ruan for her evils. There she met Pain, Suffering, Death, and Destruction. They vowed to serve her as long as they lived. They were released by Rush as part of a deal for more power. They took away the power after the deal was made, however.