Su Wan, the director of modern loan assistance, travels through the Kangxi period and incarnates as a concubine from a poor family in Jinling. She uses modern financial thinking to establish "Jin Chai Loan". She breaks through the shackles of feudalism, pays off huge debts, supports her family, resists the difficulties of powerful people, and expands her business to the capital. She eventually becomes a legend of saving the world, and gains a lifelong love.