After a Marriage Swap, I Married the Childless Crown Prince—Your Highness, Please Be Gentle

[Double Rebirth Swapped Marriage + Clear-headed Protagonist + Revenge-focused + Exclusive Doting] After dying an unjust death, the two sisters are reborn. In her previous life, Song Yunying married the Second Prince, an underdog in the succession struggle. With her miraculous medical skills, she saved her husband from peril many times and helped him ascend to the position of Crown Prince. Little did she expect that the scumbag, to protect himself, would go so far as to ruin her reputation and ruthlessly eliminate her. Meanwhile, her younger sister, Song Yaoxian, had married the Ninth Prince—a frontrunner for the throne. However, he turned out to be an impotent, foolish lunatic, destined for a short life and no heirs. After being reborn, both sisters swap their marriages. It matters not; with her medical skills in hand, why would Song Yunying fear she couldn’t cure her husband? Wait, wasn’t he supposed to be incapable? Why was he so incredibly clingy? He: “Song Yunying, weren’t you the one who wanted to marry me? Why are you hiding now?” She: “Dugu Yu, how are you even better at playing pretend than I am?” Conflict with the mother-in-law? She had none; her mother-in-law loved her more than anyone else. From the palace to the princely manor… from sisters-in-law to sisters… she handled everything with ease, dealing with each of them in turn. She assists her husband, and the position of Donggong is within reach! — Description from novelcodex.orgFull novel: After a Marriage Swap, I Married the Childless Crown Prince—Your Highness, Please Be Gentle — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠