Gu Wanqiu, a talented girl from the 21st century finance department, woke up in the 1930s. When modern financial thinking collided with the undercurrent of the business world in the Republic of China, she relied on accurate risk prediction to save her father's Huitong Bank, which was on the verge of bankruptcy. However, she met Shen Yanzhi, an industrialist who had returned from studying abroad, during stock trading. Hidden in his suits and leather shoes is his enthusiasm for industrial salvation, and her swaying cheongsam is wrapped in the edge of financial trends. From the financial game on the Bund to the Bourne Supremacy of Xiafei Road, the two souls are attracted and tested by each other in the torrent of the times. When the numbers on the ledger turn into the password of the love letter, a love that spans time and space quietly sprouts in the collision of silver dollars and checks.