The pregnant woman pressed down on the wife, and the cousin collapsed into the prince's arms.

[Exquisite beauty + bears a child + sickly + favors concubine over wife]
In her previous life, Lin Yaoniang was a servant born into the Su family. Because the eldest daughter of the Su family had been unable to conceive for three years after marrying into the Pei family, she was chosen as a concubine and sent to the Pei mansion to become a pawn for continuing the family line.
Not long after entering the mansion, she became pregnant. However, she tragically died during childbirth due to the large size of the fetus.
After wandering the mortal world for decades, she realized that her entry into the mansion was a scheme. In the years that followed, she watched helplessly as her mother died of grief and her grown son died in an "accident"!
And the person behind all this is her good lady, Su Wanrou!
Hatred grew wildly in Lin Yaoniang's heart, and just as it reached its peak, fate played a strange joke on her—she was reborn.
In this life, she is no longer Lin Yaoniang, but Shen Yunshuang, the extremely beautiful cousin who once kept Su Wanrou awake at night.