Umm i don't understand why they accept this whoreson to the other realm. He is pure evil and needs to be exterminated. Instead they train him as if he is gonna do some good for anyone besides himself, they are litereally teaching at a demon to fuck them in the ass later. They should've purged this bastard in the ruins.

specially since that hooded master said glory city still exists cause someone's been looking out for it but where is that person now

After bonding with students, masters should've realized that their students are fighting to the death and came to interrupt the assault.

That demon leader is also using a technique that snatches bodies so his vileness should be known by the teachers.

Savage

he was right though. one thing i hate about MC that is too virtuous is that they are unwilling to do what needs to be done because of hostages.

And here comes the part where they negotiate, seeing as the Demon Lord doesn't seem like someone they could beat at this point (character-wise, they also seem pretty important to the plot).

Sigh…….One day Nie Li will get his revenge.

Bro