The universe is vast and boundless. Humankind on Earth has long studied the cosmos, yet they have not even come to understand the solar system, let alone the universe itself.
With current technological means, even if another thousand or ten thousand years were to pass, humanity would still be unable to unravel the mysteries of the universe.
In this vast expanse, there are seven Great Realms. In the ancient era, one of these realms was eradicated, leaving only six. These six are called Great Realms because each possesses three distinct planes of existence: the Mortal, the Immortal, and the Divine. Other planets lack such distinctions. However, even those planets without such divisions are remarkably powerful. Countless planets within the universe are capable of sustaining life.
Chapter 1378