The demon emperor, who is renowned throughout the world, is precisely the little black dog that Gu An saved a million years ago. He conducts himself with integrity, never bullying the weak, nor harming the Human Race, so his reputation is excellent. Not only does the Demon Race respect him, but many Human Race Cultivators also admire him. Thus, the nine Major Sects don't dare to act rashly; they must have a legitimate reason.
All nine sects of the world adhere to the Righteous Dao. Acting in the name of the Righteous Dao requires a justification, especially for matters like waging war and taking lives, which must have an unavoidable reason.
