After My Marriage Was Changed, I Became the Wife of the Imperial Minister.

After her stepsister Su Lingyi was reborn, she stole Su Wan's "Number One Scholar" fiancé and married Su Wan to the "dandy loser" Pei Yan, the concubine of the Hou family. Unexpectedly, Su Wan activated the "husband training system" - every time she trains her husband, her husband's IQ +1, force +1, and strategy +1. Three years later, the stepsister's champion husband was imprisoned for corruption, but the heroine's "good-for-nothing" husband became the chief minister, and she became the youngest royal wife in history. At this time, Su Lingyi knelt down and begged Su Wan for help. Su Wan said, "You didn't behave like this when we exchanged marriages." Sorry, no help!