In the 80s, everything Japanese was cooler, and there were lots of books about American expats "finding themselves" by going to Asia and learning Asian martial arts and Asian philosophy and basically being more Asian than the Asians. So this is about an American expat who hangs around with other expats even though he's "gone native" in Japan. It's got a decent pace and better-than-average writing, but the story was self-indulgent (like the main character), and an ending that left me thinking that the entire book was pretty pointless.