You can change Japanese yen into RMB in Puyang, Henan. I suggest you change it at the Bank of China. You can directly change Japanese yen into Hong Kong dollars through foreign exchange transactions at the bank counter, and then change Hong Kong dollars into RMB. This is more than if you directly change Japanese yen into RMB, per 1 ten thousand yen 16.7 yuan. You can go to the bank to look at the quotation and work it out.