Han Naishun is very nice. He is the director of Qingdao University Branch Committee of China Revolutionary Committee. Han Naishun's piano room is covered with posters of students' graduation concerts. On the top right of the piano covered with student award certificates, there is a banner presented by Zhang Ruizhu, a graduate of Class 20 1 1: "Teacher ocean deep, teaching like spring breeze", which shows that he is a very excellent teacher.