Although Hades had become the King of the Underworld, there were still many secrets he was unaware of.
For instance, he knew about the existence of Cosmic Entities but didn't understand how they actually existed.
William shared some insights with him, and although Hades only grasped a bit of it, he got a rough idea.
Initially, William thought about giving Hades some additional rewards.
But upon further consideration, this guy already possessed two top-tier divine artifacts.
If William gave him another, who knows how arrogant he might become? That wouldn't be good for him.
Hades clearly wanted to discuss more about the battle of the Cosmic Entity guardians with William.
As William's disciple, Hades had been a good host during their stay, and it seemed a bit stingy for William, as a master, not to offer some reward.
