Tiline is a decentralized wallet. It is used as a key tool for asset depository and identity accounts in the Metaease ecosystem. Tiline can be used as a browser extension and mobile application as well as an SDK, to support FT and NFT token storage, trading, and conversion. Provides a key vault, secure login, token wallet, and token exchange, everything needed to manage digital assets. Allows users to manage accounts and their keys in multiple ways, including hardware wallets while isolating them from the site context. This is a significant security improvement over storing user keys on a single central server or even in local storage. In particular, the Tiline wallet SDK will be embedded into the game application, lowering the barrier to participation in blockchain games, enhancing the user experience, and fully securing the user's virtual assets in the game. Support Web3 compatible browser customers can very easily link other applications through Tiline, only need to authorize the signature, Meanwhile, each transaction request requires an authorized signature. Tiline supports the exchange between multiple tokens within the eco-application and MTEE, and also supports other tokens to exchange for MTEE, lowering the threshold for users to participate in each application in the eco-application. In addition to transactions, Tiline also serves as the user's identity account and allows direct participation in ecological applications by using Tiline.