KoiBio Genesis is a collection of cross-chain NFTs based on BASE Mainnet, Ethereum ERC721, and Optimism. It integrates functions such as gathering, cultivating, trading, auction, game play and other functions. It adopts a cross-chain mechanism to build cross-chain collections of NFT-KOIs such as BASE, Optimism and ETH. KoiBio Genesis is a card game for cultivation and management. Koi fish are divided into 12 categories in total. The more expensive the koi, the less likely it is to appear. Thr...