They use yen.
Japan uses Yen as a currency
The yen is the official currency of Japan.
Yen
The Japanese Yen is the unit of money in Japan. One yen has 100 sen. ¥ is the symbol for Yen. It is also coins and bills.
The Yen.
Yen
They use "yen" symbol is a capital Y with 2 lines at the middle >--|-|---
In Japan they use yen (¥ or 円). One hundred yen is about one US dollar.
Yen i believe
Japan functions on Yen.
in Beijing they use yen as their currency