Prisoners voluntarily offered up their souls.
The moment they entered their names into the device, their souls were extricated from their bodies.
Duan Mingyuan and Owl both believed that the Judge might have misunderstood the word "voluntarily," as depriving them of their souls without their knowledge should not be considered voluntary. However, the mechanical prison guard presented an irrefutable argument.
Even the prisoners themselves had no objections.
To demonstrate this, it specifically invited a prisoner who had registered, to tell Duan Mingyuan and Owl in front of them about the process of losing his soul, without any concealment.
The prisoner did not get angry; as the mechanical prison guard had said, he did not mind.
He even admitted he had never felt better; negative emotions like anger, hatred, and resentment had all left him, and even though he was in a cage, he could maintain inner peace.
He had obtained what he truly wanted.