Han Sen looked at Moving Star Emperor and said, "Are you saying those that don't understand are filthy? Why don't you go ahead and explain what the Luminous Stone is, then?"
Moving Star Emperor rebutted with, "Pah! You don't deserve to know."
"Wow, now you look like some pompous idiot who is only pretending to be superior. You shouldn't go around telling people you're an emperor, much less a spirit. Even talking to someone as thick as you has me feeling embarrassed." Han Sen wasn't willing to let this go so easily, and so he said a lot of mean things.
Before his enemy, he'd never concede.
Moving Star Emperor was notorious, but he had quite the reputation, though. Between spirits, disputes were often settled through battle. The opportunity to sort things out through discussions, as most humans did, rarely arose.
Knowing he might be at a disadvantage made Moving Star Emperor extremely angry.