In Shanghai in 1930, Wei Ruolai, as an ordinary clerk of the Central Bank of the Kuomintang, was gradually appreciated by his senior adviser Shen Tunan for his outstanding work ability. In the process, Wei Ruolai saw a lot of corruption and darkness in the Kuomintang's financial field. In the midst of hesitation and depression, Shen Jinzhen, a member of the Communist Party, used the guiding light of Marxism to illuminate Wei Ruolai's heart, and different choices made him and Shen Tunan finally part ways. Under the arrangement of the organization, Wei Ruolai and Shen Jinzhen were transferred from Shanghai to Jiangxi. Under the strong leadership of the party, Wei Ruolai participated in the war without gunpowder to smash the Kuomintang's economic blockade of the central Soviet area, and gradually grew into a red financier who was the only one on the economic front of our party.