White spark
"Bip... initiating cloning process.
...
...
Estimated time for finishing the task, four hours and fifteen minutes."
After hearing the chip update, Zatiel focused on Heinz's work.
The face of Heiz was already showing tiredness, but even so, his control over his power was perfect, and the attack over Nimir's consciousness did not stop for a single moment.
Heinz continued working for another fifteen hours before Nimir's consciousness vanished along with his screams.
As someone at Rank 4, Heinz could have destroyed Nimir's consciousness in one swift attack, but that would have meant destroying the rest of his soul as well, so he was forced to do it in a very slow and careful way.
Even though the rest of Nimir's soul still existed, what remained now was just a mysterious and unique source of energy. It could be considered a broken soul incapable of generating life.