Modern financial analyst Lin Wantang's soul transformed into Su Yingxue, a concubine of the Shangshu Mansion. She was pushed into the lotus pond by her aunt's confidant maid as soon as she woke up. With modern workplace wisdom, she navigates every step of the way in the deep house where her concubines and concubines are humbled. Use your business acumen to open "Yingxue Pavilion", start from the rouge business, play with ancient business methods, develop new products, establish business alliances, open up frontier trade routes, and even expand your business overseas.
She and her sister-in-law Su Wanyue, who is gentle on the surface but hides a sharp edge, went from suspicion to joining forces. While finding out the truth about the death of her birth mother, she accidentally revealed her life experience as the direct descendant of the Dingbei Hou Mansion. They supported each other in the struggles in the back house, the games in the court, and the development of business routes, breaking through the iron curtain of ethics that "distinctions between concubines and concubines". Using modern logic as a blade, Lin Wan-tang weaves a large network in the ancient business world, officialdom, and back houses, allowing the concubine's wisdom to shine in the deep mansions and courtyards, creating a legend in which the two sisters broke through and rewrote their fate.