The Guardian of Demon City said, "Because the Underworld Lord used to be a recluse who disliked contact and communication with others—meaning he had a rather reclusive personality—even the Demon Lord, the Emperor, and the Deity of Gods didn't know much about him. If we are talking about who is most likely, the Underworld Lord is undoubtedly the top candidate."
"Not the Deity of Gods?"
The Inner Demon asked.
Chapter 506