Despite the low tourism in Japan, I think Japanese (as in individuals) are temporarily enjoying the strength of their currency as they flock to Korea and other countries for shopping...

Last few times I was transiting in ICN and flying to NRT or other destinations, I saw most of Japanese pax with one or more large duty free shopping bags containing Hermes, Gucci, named brand goods in large boxes. Certainly, strong currency for their aggregate domestic economy (and companies) and foreign trade is not good for Japan and that can ultimately influence individual Japanese citizens in relatively short period.