During the Republican era, a wealthy heiress loses her entire family in a massacre. Twenty years later, she returns as the First Madam of Mo City. On her path of revenge, she forms a blood pact with a proud dragon prince and a cunning jiao dragon. The two become her protectors and silently fall in love with her. Later, a dashing detective joins the race for her heart. With three men vying for her affection, she reopens the investigation into her family's tragedy. Thus begins a legendary Republican tale of love and vengeance.