China is a century-old historical figure in modern times, which is an elective course in universities. I took this course in the summer before my sophomore year, and I felt very good. Then I found the teacher who taught this course was really interesting on the day of class. Maybe I don't like this course, but I like the teacher who teaches this course, and then I fell in love with this course. Because the way the teacher lectures is a little different from other classes, he has a sense of substitution when he speaks, so he tells those historical events as stories, and sometimes adds some of his own things, so it is very lively and interesting.