Numerous Immortal Academy students would arrive from all directions at the Burial Immortal Mountains. The reason was very simple: this place contained many Blood Burial Pools.
It was said that the Blood Burial Pools were unique entities nurtured by the ancient Burial Immortal Realm, and they provided immense assistance in the refining of puppets.
In the Immortal Realm, many people engaged in puppet refining.
Chapter 587