After Rebirth, I Exchanged Marriage with My Sister-In-Law

In my previous life, my sister married the King of Qi and became his concubine, while I married a poor scholar. As a result, the King of Qi was disgusted, the concubines in the palace fought, and the younger sister was imprisoned in the backyard, causing misery. A poor scholar was very ambitious, won the first prize, and became famous all over the world. I became the wife of the first prize, with unlimited glory. My sister stabbed me to death and went back with me to the day when I chose my marriage. This time she grabbed the poor scholar's jade pendant first: "Sister, this time it's my turn as the No. 1 Scholar." But what she didn't know was that the reason why the poor scholar became the number one scholar was all thanks to me.