Sinopsis

Lucien, a demon sealed a thousand years ago, signs a contractual marriage with Ella, heir of ancient witches. They each have hidden agendas but fall genuinely in love as they stay together.Ella awakens her witch powers and teams up with Lucien to fight the schemes of the Winslow family. Finally, they break the seal by sacrificing half of their own power each, saving one another and staying together forever.