Some countries offer their citizens scholarships to study abroad in places like Japan. Check with your university’s advisor or government education agency for openings and conditions.
Your home city may have a scholarship or similar system available to you through an exchange agreement with a Japanese municipality (prefecture or city). Check with your university’s advisor or government education agency for openings and conditions.
There are no limitations on applying for scholarships where "university recommendation" is not included in the application requirements. When the university is notified that applications are being accepted, the information will be put on the notice-boards.
There are also scholarships available that do not send information to the university.