- Protagonist: Lin Chen, a former core engineer of the Interstellar Research Institute, was reborn in the parallel time and space of the city due to an experimental accident, and was accidentally bound to the "All Worlds Trading Hub System". He looks gentle and restrained, but in fact is sinister and decisive, and is good at localizing technology from other worlds.
- System functions: Randomly match multiple planes such as science fiction, cultivation, interstellar, and cyberspace to build cross-dimensional trading channels; it comes with three core modules: "Technology Analysis", "Time and Space Anchoring" and "Risk Isolation". Transactions must follow the principle of "equivalent exchange", and "civilization points" can be accumulated to unlock higher permissions.
- World view: Starting from Linjiang City, which is highly technologically advanced but hidden in hidden dangers, it appears to be a cyber city covered by holographic advertisements, but in fact there are technological plutocrats that control the economic lifeline, a secret organization of stowaways from other worlds, and advanced civilization detectors that covet the earth's resources.
Multiple heroine settings (bright contrast + depth of bond)
