[anrakushi]

there are graduate programs conducted completely in English. My friend and I researched this because he really wanted to do a master but also really wanted to return to Japan asap. He can't read kanji and japanese is limited so i helped him with navigating the Japanese websites.

contrary to what hatredcopter said, you don't need to have done research either. I'm sure there are some that do, but i can tell you many of my Japanese friends that i studied with in Japan are now starting their masters straight after completing their bachelor. but they will require a good GPA, letter of recommendation etc in most cases. Have a search around the universities english websites.