Coin Island is a Blockchain-based global cryptocurrency payment platform that connects consumers and stores around the world. Consumers and shops around the world can make safe and fast payments using cryptocurrency within the multi-lingual Coin Island platform. Consumers can use Coin People to check and pay the information such as location, menu, etc. of a store where cryptocurrency payment is possible. Stores can use the Coin Store to provide services such as promotion, settlement, and sales management of stores. Coin Island Air (CIA), issued by Coin Island Co., Ltd. is a Mining token in which provide reward to consumers when consumers make payments with BTC, ETH, XRP and CIT in stores through a Coin Island. The CIA provided as Reward is cryptocurrency that can be purchased or sold through a cryptographic exchange as well as paying for goods and services on the Coin Island platform.