This was a classic example of the fad of Japanese campuses of minor American schools. Not exactly a scam, but of limited academic credibility and most of them disappeared fairly quickly. The idea was to get rich Japanese students to enroll at the home campus after a couple of years of intensive English in Japan. I was actually taking an English teachers certification class, which was pretty good and taught by a former RSA instructor. The school itself must not have been so good, because it soon joined the vanished.
Japanese students are very good at collectively studying for exams.
Interesting to watch, though I wasn't able to participate effectively on my own behalf. The result was I took the entrance exam for the master's program twice, and didn't come close to passing.