A tall burly man who came out of the mansion in Yun Street Alley with Lu Baiwei half a year ago. Lu Baiwei introduced him to the original owner as a distant cousin from the countryside. Qi Jiachuan seemed familiar with him. Zhong Siqi tailed him to a state-owned restaurant and sprinkled medicinal powder on him while he was buying meat buns, hoping he would develop the same symptoms as Lu Baiwei.