i found it!

This makes my day.

I found a carton of concentrate for Calpis water at an oriental food store in town. It was one of my addictions in Japan, and now in the U.S. as well. I can't wait to try it here, even though it probably won't taste quite the same as when a convenience store clerk hands it to you in a plastic bag with a polite bow and a cheerful "Arigatou gozaimas!"

It's still really, really good.