1. If your university has an exchange program with a domestic university, you can apply for 1-2 years, but you still have to attend the graduation ceremony in Japan. But this possibility basically does not exist, because exchange students generally do not give you academic qualifications, and only Japanese students have the opportunity.

2. Others, such as transferring credits, are impossible. It's impossible. China's university entrance needs to be registered. Those who have not registered are fake college students, and their diplomas cannot be certified (it doesn't matter whether they are approved or not). This is different from the foreign university system.

3. Unless you come back: retake the college entrance examination, adult college entrance examination, self-study examination, etc. Read from the beginning.

Fortunately, south university of science and technology of china is conducting experiments. You can consult them.

5. You can also come back for postgraduate study after finishing your degree in Japan.

-Non-experts