Seeing how their tribe leader was killed, the remaining Nascent Soul Realm Zasfin immediately gave up and decided to flee. However, he was simply not as fast as Roan, so it didn't take long until Roan finished him off as well. 'Sure enough, it's just like what Sister Orb said. None of these guys tried to sacrifice their Nascent Soul for more power. Well, that's good for me, I guess.'
Roan didn't even stop to think about the two Zasfins that just died. They thought about humans as nothing more than expendable resources, so why should he care? Besides, it was a lot easier trying to kill than prevent taking someone's life while fighting. Roan, of course, knew that very well.