MCI P2P is a site that relays ERC20 coins on the Ethereum network.   However, due to gas fees and speed issues in the Ethereum network, we have now converted to Klaytn ERC20 to increase the speed of peer-to-peer transactions and reduce transmission gas costs.   Depending on the seller's options, transactions between different coins are possible, and purchases can also be made with points charged to MCI site.    Purchased coins can be exchanged in real time for Ethereum or ERC20 coins, or withdrawn in cash. coins.