1. As an international student, the Japanese exam will be relatively simple, but it needs to be above 1.

2. Basic Japanese, 6 hours a day. It will probably take 1 year to reach the level of 1.

3. The entrance examination for international students (Japanese, Mathematics, Comprehensive) is required for Tsinghua University. After reaching the score line, you also need to take the college entrance examination (Japanese, English, others). Arrange an interview after passing the exam, and formally admit after passing the interview.

Your basic knowledge of Japanese is almost zero, so you will definitely fail the exam next year.

Keio University is a famous school in Japan, and it is not so simple to get into it.