"You are of a poor nature. Although you are not rich, you should live a long life. It was a ghost that lured your soul here. All the unexpired lifespan in your previous life has been turned into blessings in this life."
The heroine traveled through time and space and lived another life. From being a mere meager in the past life to becoming a successful person in this life, she got rid of the scumbag by some combination of circumstances and got married.
It is an imaginary history that draws on the settings of some real dynasties.