I Became the Younger Sister of a Dying Woman

I possessed the female lead’s twin sister. The sickly female lead is in a ‘limited time’ situation where she dies without being able to connect with the male lead because of her arranged marriage with her mu*derer, the villainous sub-male lead. I felt sorry for the heroine, so I married the villain instead of her. I would just wait for the right opportunity later and then get a divorce! Well. This man who was said to be a mu*derer… was… . “… … Dream of me, wife.” I actually dreamt of myself with a blushing face. Why are you so cute? Why are you so handsome? ‘Alright, I acknowledge you as my husband.’ By the way. Why is the residence of my husband, the prince, so poor? Even the vassals are ignoring my husband? Ahem. I can’t stand still and watch. They’re all dead.