Due to the explosive growth of DeFi, multiple assets were introduced into the Ethereum network as anchor coins, such as BTC, USD, and GOLD. At present, there are more than 20 asset-backed tokens in the current market, multiple among which are backed by the same assets. In the future, more tokens that are effectively backed by the same underlying assets are expected to be introduced into the network. Theoretically, the swap ratio between these tokens should be 1:1 given that they are effectively backed by the same underlying assets. However, for the current DEX in the market, this fundamental point was not fully considered when designing the exchange protocol, thereby causing unnecessary high costs for users because of the slippage. Thus, a better-designed product that specializes in the assets that are effectively backed by the same underlying assets is urgently needed in the market.