An elderly male teacher undergoing labor reform, one of two former teachers at Yenching Institute of Technology. He has gray hair, wears thick black-framed glasses, and worn navy blue jackets with holes. He is nervous about being called 'teacher' due to his political situation. He is excited when Su Yao reveals her intention to study for the college entrance examination and promises to help her privately. In Su Yao's previous life, he and Teacher Li were leading experts in Nan City's radar technology.
