Male supporting character, Xu Jialan's senior brother and also a disciple of Old Liang. He works at the Medical Association and has been helping Xu Jialan with her research project by organizing data and information, staying up several nights to compile materials. He is kind and patient with Xu Jialan but frustrated with Song Zhiya's hostility toward her. He warns Song Zhiya that he will report her behavior to their mentor if she continues.