Suwani Gold Coins are the currency used in the Special Region. It is the most valuable currency in the world beyond the gate. There is 60 grams of gold per coin, and it is usually reserved for savings.
The base currency for commercial activities is sinku gold coins, the size of five yen. Five sinku usually exchanges for one suwani. There are denari silver coins in general circulation, soruda coins are used for paying soldiers their wages, and other various types of silver coins with poorer quality.