During the tripartite talks, Ma Wanqi bid with the Japanese side on behalf of the Chinese businessmen. Qiao Renyu was brought by the Japanese side to verify Li Guangqian's signature on the contract. He Xian was worried that the fake signature would be exposed, but Qiao Renyu believed that the signature was genuine.
In the bathroom, Qiao Renyu conveyed the range of the Japanese forged 120 million Hong Kong dollar banknotes through soap engraving.He Xian deciphered the information and confirmed the specific scope of this batch of unreserved Hong Kong dollars.