I Seduced the Deceitful Duke

Maria fulfills her duties as a guild member while hiding her identity as a fallen count's daughter to make a living. One day, she receives a request from her to break up the wedding of the Duke of Berry Winter. *"This marriage is invalid! I... have the Duke's child!"* At Maria's shocking declaration, the wedding hall became agitated and she was just about to leave, *"Baby, why are you so late?"* The Duke of Berry Winter calls me that during our first meeting...? Will Maria, who has suddenly become the duke's wife, be able to fulfill her wealthy dream? (Source: Naver, translated)