Zeng Yunrui is Zhao Lingcheng's subordinate who tracks signals for the nuclear base defense. He tracked only a false signal from System 13 and felt ashamed about it. Zhao Lingcheng patiently explained the difference between real and false signals to him. He admires Zhao Lingcheng's personal hygiene and patience, noting that Zhao never lost his temper during the half-month desert deployment. He planned to introduce a girl to Zhao Lingcheng and invited him to his home after work, saying his wife would cook local dishes. He offered a dirty handkerchief to Zhao Lingcheng when he sneezed.
