In her previous life, He Juluo accidentally fell into the water and was saved by Du Changfeng, a hostage prince returning from abroad. She fell for him at first sight and insisted on marrying him.
The price was that her entire family was framed by treacherous officials. He Juluo was run through with a spear by the He family's adopted son, while the man she had devoted herself to merely watched with cold indifference.
As she lay dying, He Juluo thought to herself: If I get another life... I will avenge my entire family!
When she opened her eyes again, she was back on the day she had fallen into the water and been rescued.
This time, He Juluo avoids Du Changfeng like the plague. She mines gold, grows grain, and makes white salt, vowing to become the richest woman in the land.
Just as she uncovers the treacherous officials, takes down the green tea schemer, and settles into a peaceful life of lying flat and counting money, the regent offers her the realm as a betrothal gift and wants to marry her as his consort?