Sophia Angelique, the daughter of a count, is married to Lucian Valenti, the Second Prince of the Empire who is feared as the "Demon Duke." Though they had connected in their youth, he now pushes her away with cold, ruthless eyes. Their married life is filled with nothing but misunderstandings, ultimately ending in their execution for crimes they did not commit.

But the moment the light of her life is extinguished, Sophia finds herself back at the beginning of her wedding night. Given a second chance, she is determined to be loved this time. She vows to truly connect with her estranged husband and change their tragic future. This is a romantic fantasy of a couple's rebirth and intrigue, starting from a return from death.