- **Timeline**: The final days of the Primordial Era, a million years ago. The laws governing the myriad heavens have yet to fully take shape, and chaotic origins abound.
- **Cosmic Structure**: The universe is divided into nine great domains, each governed by different laws. The Cangxuan Domain, home to humanity, is ruled primarily by the Five Elements, while the Myriad Demons Heavenly Domain, occupied by the demon race, flows with primordial demonic energy.
- **Special Laws**: There is a space-time rift known as the Eye of Guixu. It opens once every thousand years, connecting to the legendary Ancient Burial Realm, where ancient gods and demons are said to lie buried.
