Is it difficult to apply for a master's degree from Wuhan University and a doctor's degree from Tokyo University?
Not difficult. It is not difficult to apply for a doctorate in Japan, but it is a bit difficult to graduate. Teaching in Japan is very rigorous. In addition to pure English teaching programs, you can apply directly in China. Generally, the courses of Japanese teaching programs have to go to language schools for the first half to two years, and then take the entrance examination to become a fully qualified teacher. This is more difficult.