While electronic money is highly developed in Japan, banking is still way behind the 8-ball. Credit card use is growing, but the concept of debit cards does not really exist in Japan. If you have a debit card with a VISA, MasterCard logo on it, you will be able to use it, however the transactions are run as credit cards, so many places add a surcharge to cover the high costs charged by Japanese merchant accounts (2-4% in general).
Japanese money is Yen, and there are Coins for 1-500 yen, and notes for 1,000, 2,000, 5,000, and 10,000yen. 2,000yen notes were brought out for the millennium but are not widely circulated.
There is one international ATM in Akakura, and also one down at the Seven Eleven on Route 18.
The ATM in Akakura is located at the post office, near Akakura Bus Stop. Operational hours are limited to 9:00AM to 5:30PM on Weekdays, and 9:00AM to 12:30PM on Saturdays. It is closed on Sundays and Public Holidays. Most major international credit cards are accepted.
Outside of these hours, the only place to get cash is the ATM located at the Seven Eleven on route 18. This is a 15-minute taxi ride from Akakura, but the ATM is open 24 hours (apart from several minutes of maintenance down time during the late night hours).
There are no money changing facilities at all in the Myoko Kogen Ski Resort area.
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