Various Ethereum DeFi applications on Ethereum aim to solve only one problem: the increase in operational efficiency of funds in the Ethereum ecosystem. Today, most of the heavily-traded DeFi assets, such as ETH, USDT, DAI, USDC, etc., are issued on Ethereum. However, in reality, Ethereum and Ethereum-based token assets only accounts for a small proportion of the total market value of all cryptocurrencies. This means that, a large number of well-received cryptocurrencies are incompatible with the current DeFi structure. For example, BTC, BCH, LTC are all left out of the “DeFi” world because they are not ERC-20 Tokens. The incompatibility makes these token-holders outsiders of the prosperous DeFi world, meaning that these non-ERC-20 token-holders cannot enjoy DeFi services, as well as the opportunities of liquidity mining and farming in DeFi. This seriously hinders the liquidity of crypto assets and causes unnecessary friction.