PS: I want to hear more of your voices and receive more of your suggestions. Search for the WeChat public account "qdread" right now, follow it, and give "The Highest Bounty" more support!
The origin of the name Black Prison dates back well before it became a place of imprisonment.
It is said that when the Daisi Family first discovered this place dozens of Eras ago, they found that the time-space rules of this Star Domain were chaotic. Once ensnared, there was no escape, so it was named the "Black Prison"—a shorthand for the "Black Cage".
Later, the ancestors of the Daisi Family discovered that this Star Domain was the original birthplace of the Time-Space Scepter. Freedom to enter and exit this Star Domain was only possible with the permission of the Time-Space Scepter.
Many Eras later, a Heavenly God-Level Elder of the Daisi Family, while ascending in rank, was invaded by a heart demon, lost control, slaughtered his kin, and was jointly suppressed.
