"I've learned from many people that according to legend, there are three founders of the inner world. One is a member of the Dragon Tribe, another is a nine-tailed demon fox, and the last is an eminent monk from the Buddhist Tribe. This point I managed to verify later from an underground channel; it isn't just a mere legend.
"However, these three founders were only active for a little while during the initial stages of founding the inner world. Subsequently, they went quiet very rapidly.
"After the three founders faded into the background, high-level Heavenly Gods sprang up one after another not long after. Most of these were short-lived. This situation only stabilized 3,000 years ago, when six overlords each took over various territories to maintain a system of checks and balances.
"Among these six, two of them were the earliest to emerge—almost within 100 years of the three founders going quiet.