Somehow, since I was here last September, I forgot what little Japanese I used to know. I think it's part of having been so deeply immersed in learning Korean over the last several months. So in that sense, it's a good sign. But it's frustrating to be in Japan and functioning at an even lower level than I was 6 months ago.
Ah well. Win some, lose some. I'll go exploring in Fukuoka again tomorrow.
More later.