In Manlong City, the notorious “Black Peony” Jiang Nian Nian, known for bringing misfortune to her husbands, marries Ye Lang. She originally plans to swindle a large bride price and leave, but unexpected incidents keep occurring. Soon, she realizes there are hidden mysteries behind this marriage. To achieve her goals, Jiang Nian Nian is forced to maneuver against Ye Lang—yet she finds herself sinking deeper and deeper.