Until the Exiled Duke’s Daughter, Wilhelmina, Becomes Happy

“I hereby break my engagement with you! A commoner researcher has received a medal for his efforts. As a reward, I will marry you to him!”
 
The Duke’s daughter, Wilhelmina, is told at a night party that her engagement to the Crown Prince has been broken off. The Crown Prince sets her up, banishing her from her parents’ home with only a small amount of money as a farewell gift, and marries her off to a commoner researcher whom she has never seen before.
 
——This is my husband, a tacky man.
 
He is tall but skinny, with a stoop and ill-fitting clothes due to his thinness. He has messy hair and is unkempt in appearance. This is Alex, her husband. At first, the two are awkward around each other, but Wilhelmina supports his research and helps improve his appearance, leading to a mutual attraction. They become happy and rise to the top, even seeking revenge on her family and the Crown Prince who banished her. Meanwhile, those who exiled her will suffer ruin.