YOUChain is a blockchain operating system designed for commercial distributed applications. It is compatible with ETH and is a public chain fully tailored to the personal value. Every user can build their own ecology under the rules and the principle of community autonomy. The first DApp can be used to create virtual items with one click. At the same time, it has similar operating system infrastructure with ETH. Follow-up more and more personal-centric scene-based DApps will be released.