Daye Grand Princess Regent Su Wan fought powerful officials and quelled rebellions, yet met her demise through betrayal by confidants, her soul crossing over to a same-named young lady in 2026 Longcheng. At the scene of adultery, she slaps the mistress, forces her ex-husband to transfer all equity, and exposes the mistress's dirt. Her second uncle's family swallows up the family property, but Su Wan uncovers evidence of crimes to seize power, securing her seat as the sole heir. Playing business strategy against Lu Chenzhou, she forms ties with Jiang Ye, and navigates around Pei Zhenguo. Bringing down enemies, her father returns, building the Grand Princess business empire, ultimately becoming the daughter of the wealthiest person.