Crown of Moonlight follows Lena Cassius, a noble heiress stabbed to death by her jealous younger sister Ella in her past life. Reborn on the day of the rose-throwing betrothal ceremony, she sees through the hollow pretense of aristocratic marriage and defiantly throws her rose to Silas, a wandering painter, breaking ties with her family to marry him. Silas is secretly the King of Moonlight, who fled the divine realm to escape an arranged marriage. He watches over Lena in silence as she endures humiliation and cruelty from Ella and her family. With unwavering courage and sincerity, Lena passes three ultimate divine trials. Her true destiny unfolds: she is crowned Queen of Moonlight, rules both realms beside Silas, and claims a love that transcends fate.
