Far in the future, humans make up less than 1% of life on Earth—now legends, blamed for their own extinction through reckless cross-species mingling. Hybrids inherited their legacy and spread across the stars, some evolving into planetary superpowers. In a mysterious age of peace, the Vampire Queen, Diamontra—who sacrificed a planet for power—faces an arranged marriage after 10,000 years of defiance, as the Galactic Council grows uneasy.