Su Banglan, the daughter of a merchant, was involved in the death of the prince's heir apparent due to a shocking transaction. She uses business as a sword and wisdom as a shield. In the whirlpool of power and intrigue, she and the seventh prince Xiao Jue used each other to rely on each other in life and death. From the accountant in the south of the Yangtze River to the queen of the country, she protected the dragon's veins with her blood and sacrificed herself in exchange for peace. After returning from rebirth, all his memories were lost, but he was willing to stay alone for a hundred years, waiting for her to remember the words "We will never be together forever" again. This time, it's him who is chasing her - but the old enemy has not been eliminated, the dragon's veins are about to fall, and the day they meet again is actually the time when the world is in turmoil again...
