The Dragon Blood Empress

Arya, a frontier orphan and heir of pure dragon blood, faces repeated schemes from her adoptive sister Elara after returning to the lord's family. With formidable strength, she enters the Dragon Guard Academy, overcomes traps and awakens ancient dragon power. When Elara awakens the thousand-year necromancer Valok to wreak havoc, Arya, aided by Prince Caspian, breaks the final seal, becomes the Dragon Emperor, ends the catastrophe and crowns herself the Dragon Blood Empress to protect the continent.