Two huge swords that looked intimidating appeared in front of him with two huge hands holding their hilts. Just as he finished his preparations, the system started absorbing the demon energies.
'Don't let these filthy energy enter my body, turn them all into PSR orbs.'
'I'm not the forgetful you know.'
'I just wanted to make sure.'
Ibro feared his system would forget about this point as there was a long time since he last killed demon seeds. In front of Ibro, huge forms of demons were formed, but he didn't care.
He took the stance of his sword whirlpool strike as he then used it one time after another to kill endless numbers of demons.
Ibro was in a hurry, so after he killed a group of demons, he didn't wait as he flew rapidly to get near another group of NPCs to kill the demon seeds inside them.
By this approach, he managed to purify all the NPCs and liberate them from the slavery of demons in less than 10 hours.