Koi Metaverse (Koiverse) is a Fish Farming blockchain game that combines token economy and NFT assets. It consists of a series of smart contracts, and all of the in-game assets belong to its players. Players can mine more SHELL tokens by collecting high mining power fish and grow them by spending SHELL, creating a positive self-circulation. If pure-bred mining fish is reproduced, you can lock it into the pictorial book to mine KOI, the governance token, and use it to participate in the other DeFi activities. Koiverse creates a variety of NFT assets in the form of fish images and aims to become the BearBrick in the blockchain GameFi space. Certainly we are the true Metaverse believers and builders who have strong motivation to unlock the Next-Gen GameFi Metaverse Economies. In Metaverse powered by Blockchain, we have seen the following core disruptive innovation. With blockchain, we can imagine a world in which contracts are embedded in digital code and stored in transparent, shared databases so that everyone could have the real ownership of properties. NFT is a new form of unique digital asset designed to show someone has ownership of a unique virtual asset. It will become a new trend of virtual assets for creating, trading and collecting. Crypto unlocks new rules of business models in game, like the concept of “Play-to-Earn” which created new types of jobs and professions in digital Metaverse economies.