World view setting
- **Time Dimension**: The story spans the history of interstellar wars for 120,000 years before human history. The current timeline hides the crisis of periodic civilization restart.
- **Space Architecture**: Nine-layer star field structure (the earth is on the seventh layer). Each star field is separated by a dimensional barrier. There are 37 observer civilizations monitoring the low-dimensional world.
- **Civilization Forms**: From mechanically ascended cyber civilization to energy life forms, it includes 12 interstellar civilization forms, among which the Star Eater civilization lives by devouring stars.
