The "Young Leaders" program of the National Graduate Institute for Policy Studies (GRIPS) announced the selection for the master's courses "State Administration" and "Local Administration". You can find information about educational programs through the links below.
Political science
https://www.grips.ac.jp/en/education/inter_programs/leader/
Business Administration
https://www.ics.hub.hit-u.ac.jp/admissions/mba/financing.htmllaw
Legislation
http://www.law.kyushu-u.ac.jp/programsinenglish/html/programs-admissions/academic-programs/ylp-llm/
Medicine
https://www.med.nagoya-u.ac.jp/medical_E/laboratory/basic-med/social-science/ylp/