As the title states.
Check out Ritsumeikan Asia Pacific Univeristy. (www.apu.ac.jp)
There are 2 undergraduate colleges, the college of asia pacific studies and the college of asia pacific management and 2 graduate schools, the graduate school of asia pacific studies (m.s. in asia pacific studies, m.s. in international cooperation policy, and ph.d. in asia pacific studies) and the graduate school of management (mba).
all programs are entirely in english with english speaking staff and you may also study japanese to help you out in your daily life.
the school is located in beppu where there are many things to do (not like IUJ which is in, wait i forget where - oh yeah, no where!) and beppu is the hot spring capitol of the world! cool place
i have friends at both places. if you dont mind stupid rules and wanna have a great time and learn, go to APU.
if you wanna have a great time and learn but in the middle of nowhere, go to iuj.
but first, look up both schools. dont base your evaluation on what the ppl in on this site say! lol