Lu Zhiwei, a modern woman, unexpectedly transmigrates into the body of an empress who has been framed and deposed. Just after awakening in the Cold Palace, she is humiliated with spoiled food. At her lowest point, she becomes bound to an intertemporal supermarket system. Starting with the sale of her first bowl of instant noodles, she gradually transforms the dilapidated Cold Palace into the bustling "Zhiwei Department Store." With clearly marked prices, fair transactions, and modern business strategies, she wins over the people in the Cold Palace and leads the concubines and palace servants to become self-sufficient. She also repeatedly foils the schemes of Noble Consort Wan, the Imperial Household Department, and powerful nobles. The cold and aloof Emperor Xie Jiuyu gradually transforms from a suspicious investigator into her customer and supporter.