1. University of Tokyo: As the highest institution in Japan, the University of Tokyo has made outstanding achievements in academic research and international exchanges.

2. Kyoto University: As one of the oldest universities in Japan, Kyoto University has a profound academic accumulation in the fields of humanities, social sciences and natural sciences.

3. Osaka University: Osaka University enjoys a high reputation in the fields of engineering and medicine, and also has outstanding performance in the fields of humanities and social sciences.