Is the yen currency of Gensokyo the same with the yen currency in the outside world in Japan?
While the Yen had been adopted as the official currency of Japan shortly before the Hakurei Barrier was raised, subsequent events have had a major impact on the currency. As such, any Yen still circulating in Gensokyo are, in all probability, not redeemable as legal tender. However, said Yen could probably be sold as historical relics to coin collectors and the like, so they are not entirely worthless outside of Gensokyo.
