I am studying in a university in Japan now. As far as I know, things in Japanese high schools are simpler than those in China, but there are few. Japanese high schools are a little different from those in China. Textbooks are selected by our own schools, not by institutions like the Education Bureau, because there are many private schools in Japan. Some schools are super simple, while others are hard to die. For example, the biggest difference between Japanese high schools and domestic high schools lies in mathematics. Japan is divided into general mathematics and advanced mathematics, which are only available in private schools. (attention! Japanese private schools are synonymous with institutions of higher learning), that is to say, good schools are private, which is just the opposite of China. When it comes to the difficulty of the average curriculum in high school, it is estimated that no one in the world can compare with China except the former Soviet Union.