Universities in Japan have their own websites, and places where tutors are introduced generally have their email addresses.

You can contact your tutor by email.

Check online by yourself, preferably from the school. Many foreign language universities have international student departments, where there are many detailed information about studying abroad. You can look at it first, consult it and then combine your own online information.

Marketing, such as Waseda University Department of Political Economy, hitotsubashi university, Meiji University, etc. Everything is fine. Generally, these universities don't recruit students directly in China, so they usually have to make a language course transition and then apply in Japan. The application time for language schools begins in mid-February of the third year of high school. Different university exam subjects are different, and the preparation materials are also different.

If you want to study in Japan at public expense, you can only study in China at public expense. But you can go there at your own expense and then apply for scholarships there, such as scholarships from foundations such as the Ministry of Education, Culture, Sports, Science and Technology. Generally, you need to reapply in the past.

Before contacting the professor, contact the academic affairs office of the school you plan to attend, and then they will transfer it to the professor of the relevant major, and then you will start to contact the professor about the course and learning direction.

Personal opinion, for reference only.