"I recommend a novel to you. The title is" Secret Battle of Tong City ". It's a military-spy-agent novel. In order to complete the mission, the main character, Lan Yuhang, entered the business family, the Gao family, and became a part of it. He started a silk business with his wife, and under the identity of a merchant, he dealt with Japanese spies and fake agents, which involved the organization of the Earth Sting. I hope you like this fairy's recommendation. Muah ~😗