The Alpha Alliance uses crystal coins, which are made from some rare ore and issued by the alliance. In fact, crystal coins are a virtual currency, just like the credit points of the Nami Alliance.

The difference is, crystal coins of the Alpha Alliance are not recognized by the Nami Alliance. In contrast, credit points of the Nami Alliance can be used on the turf of several alliances. After all, the currency of a powerful alliance will not depreciate.

What can one ...