The Black-scaled Horned Eagle's words immediately reminded Chu Yunfan of the self-sealing technique recorded in the Alchemy Emperor's memories. It could be said that it was a rather strange technique.
No one knew who invented it, but it had been extremely popular since ancient times.
Using a self-sealing technique could completely seal one's life force, completely stopping the flow of time on their body. If they were only eighteen years old when they were sealed, then after countless years, they would still be the same age.
This was the best way for ancient experts to resist the passage of time. After all, even powerful existences like the emperors were helpless against time.
As long as they didn't become a god, they would grow old and die of old age. However, the lifespan of emperor-level experts was extremely long, far beyond the imagination of ordinary people.
