Lawrend couldn't deny that the demons could improve with the book he had just given them. They didn't need him by the end of it.
"I still deserve the credit, right? Besides, you need someone that can react to changes and give out an order without the need for each of you to argue with each other," Lawrend answered.
He was confident that they would agree. The very reason they didn't go through to killing him was that he was strong and was of use to them. He was like a light of hope on a foggy night.
He could help lead them to a great height that they wouldn't have been able to in the past.
The group of Heaven Demons looked at each other. It was slightly frustrating that they couldn't deny his words. He had killed a few of their Heaven Demons.
Thus, a replacement for their missing strength was required.
As for revenge? They didn't care that much about the other Heaven Demons. They cared more for the demon race as a whole.