The sovereigns of the southern underworld had been subdued by Martial Emperor Di Yi at some point in time. All of them had submitted to Martial Emperor Di Yi, and the entire Southern underworld was under his control.
The eastern barren territory's heavenly corpse sect was also established by an Emperor of the southern underworld. The reason why they were constantly fighting against the Emperor heaven divine Palace was to attract attention and make the other transcendent powers not care too much about the Emperor heaven divine Palace.
In this way, Di Yi could continue to improve his strength in the dark. When the time was right, he could start a war.
A few months ago, Martial Emperor Di Yi finally couldn't hold back and led the Army of the South underworld to attack the central continent. Many Overlord forces were destroyed by Martial Emperor Di Yi, and some directly surrendered.
