Who is Zhang's favorite student?

Zhang's favorite student is Peng Huaihe. Peng Huaihe is a favorite pupil of Zhang, a master of the Star School. Peng Huaihe is a graduate student, Zhouyi scholar and senior Feng Shui master. He is the 38th generation descendant of Yang Gongfeng Liushui Jiangdong, and he is proficient in Daoism. He became his most proud disciple under Zhang Men.