At the beginning of the chapter, Ling tells his brother that he does not have any skills other than throwing knives and fists, but he does need a master to teach him other skills. He asks Ling to tell him the real reason he came to B-city. He says that he is here to arrest the spy hiding in B-City who has leaked many national secrets. On the surface, he says, he is just a mercenary. He tells Ling to pick up the call first and then he will give him some of his knowledge. Ling calls his mother and tells her that he has been busy with his business and needs help running it. She tells him that she and her father are coming to live with him in the city in two days time. Ling tells her to take care of her health and not to scrimp on money, he has to come. He explains that he will teach him how to kill someone in any situation. The next day, the next day at night, the mysterious city, the northern district , is located there. It is also one of the best entertainments in B city. He adds that ziteng-wang will come there and have fun every night. Ling gives him the best he has and asks him to choose a waitress for him.