The distant kingdom of Edel carries a thousand‑year legacy, protected for generations by the ancient dragon Leon. Every century, a Dragon Queen Selection Ceremony is held, where the dragon personally chooses the destined queen to rule the nation's fate and safeguard its people. A thousand years ago, Serena founded the kingdom of Edel and forged a bond of life and death with the dragon Leon. Foreseeing that the kingdom would one day fall into deep crisis, she assumed the identity of a noble girl named Grace, hiding her true self for twenty years, intending to participate in the Dragon Queen Ceremony as an ordinary person and continue protecting this land. By then, the royal family had long been corrupt; the former queen Morgana, who once fought bloody battles for the country, was falsely accused of being a witch by King Egbert and exiled. Consumed by hatred, she joined Valdania and secretly colluded with the heroine's younger sister Elara, using schemes to destroy Edel's thousand‑year legacy—a conspiracy quietly brewing at the Dragon Crown Altar.
