Kai Syaoran used a powerful second-step art he had gotten from the treasury of the Thousand Songs Empire. This art was sinister and evil in all sense of the word. The victim would have all their memories stolen and condensed into a Memory pearl from which they could be viewed at any time.
The victim in most cases would become a retard. It was a cruel fate for a powerful cultivator. Still, Kai Syaoran did not care much about the consequences to the Holy Emperor. The powerful limina screamed at the top of his lungs. He screamed and writhed in agony. He begged and pleaded for mercy but Kai Syaoran would not hear out the man.