Revenge of the Spare Princess

Princess Royal Elara Sterling, in her past life, was a 'backup Spiritual Root' for her brother, drained and soul scattered. Reborn, she forms a pact with Heaven Grade divine beast Lunaris, crushing brother Kaelan Sterling. She uncovers a shocking secret: the current emperor, her uncle, murdered the previous emperor and usurped the throne. Her Dragon Vein awakens, protected by a golden dragon, she dethrones the false emperor and ascends as the first Empress Regnant of the Kingdom of Soulbonds.