Aren't You the Villain? (Female Supremacy)

'''Seeking Collections for the Upcoming Story "Righteous Mother (Female Dominance)"! Yu Yunjui transmigrated into a book, becoming a short-lived cannon fodder villain, and on the very same day, married the story’s ultimate antagonist as her husband. She and Gu Qi were the biggest obstacles to the protagonist group. Facing the smirking antagonist before her, Yu Yunjui thought: I don’t smile because it’s just not in my nature. To survive, she avoided every life-threatening event and reached an agreement with her villainous husband. The antagonist loved the royal elder sister, so she willingly stepped aside. But when she decided to take a concubine, the usually rebellious and dramatic ant...