C1903 Proterozoic 4

No matter how strong a person was, in the end, there was no way for them to leave after being sucked into the Rebirth Realm …

Unless some people came here to train and specially train, and used some special magical equipment to only drive their primordial spirit into this place …

Then, he would erode the bodies of some undead, occupy them, and continuously absorb and battle them to strengthen