After accidentally awakening Xavier, a Demon King sealed away for a thousand years, Ella, a kind-hearted college student abused by her foster family, becomes bound to him by an unbreakable blood pact. As her ancient witch bloodline begins to awaken, she discovers she is the key to an age-old prophecy, while the powerful demon Marcus relentlessly hunts her to complete a forbidden Blood Moon ritual. Together, Ella and Xavier uncover the secrets of the witch clan, destroy the Five Altars, and grow from reluctant allies into devoted partners. In the end, they defeat their greatest enemy, break a thousand-year-old curse, and find a love that transcends the boundaries between humans and demons.
