Elena, a fallen noble lady, is forced to marry Aldric, a humiliated outcast scorned by the entire city, to preserve the estate left by her mother. Killing intent surges on their wedding night, making her realize her seemingly worthless husband is none other than the Black King, the underground ruler who fell from power due to trusted betrayal seven years ago. Her uncle and aristocratic young masters humiliate her repeatedly as bait, attempting to lure Aldric out and eliminate him for good. From enduring grievances and feigning weakness to making a powerful comeback, Aldric gathers his old followers, overturns the traitors’ conspiracy, and regains his reign. Through life-and-death trials side by side, their contractual marriage blossoms into true love. Elena recovers her family’s dignity and becomes the only acknowledged queen of the Black King