The Secret Realm was not naturally formed.
It was only after Blue Star embedded into Original Blue Star, nearly shattering the previous Blue Star to pieces.
Subsequently, humans and the natives began to fight, not for justice or evil, but purely for survival.
Ultimately, humans were victorious.
The Demon Beasts were driven to the largest fragment, and the more compressed the Demon Beasts' living space became, the stronger their rebound force, the greater the sacrifices humans paid.
And it happened at this time, the Mysterious races of the heavens began to invade...
So the battle between humans and Demon Beasts had to be paused.
At the crucial points of the largest fragment, several fortresses were placed to guard, ensuring that these Demon Beasts would no longer have the opportunity to return to Blue Star to wreak havoc.
This is the origin of the Secret Realm.
