There is no need to be fluent, but you should be comfortable with reading, writing, and listening in Japanese.
We do not expect everyone to be a Japanese native speaker, but there is a lot of reading required so students should be comfortable with reading and writing in Japanese. You should also be comfortable with listening, because the video lectures are in Japanese.
Unsure? Please reach out to our admissions team (email@example.com) and we will be happy to assist you.