Source Demon.
It was a monster similar to the Source God and Source Ghost.
Compared to the Source God and Source Ghost, this Source Demon was barely clinging to life, its vital energy weakened to the extreme. It was clearly about to die of old age.
The Human Emperor Sword trembled slightly, erupting with sword qi that filled the sky and severed its final thread of life.
Radiant light swept over, drawing the Source Demon's body into the Human Emperor Banner.
According to Chen Zhao's senses, there were no Supremes left in the entire Netherworld.
This battle had pacified the Divine Ruins, Sea of Reincarnation, and Netherworld.
More than a dozen Supremes had fallen in battle.
The results far exceeded his expectations. Only the Undying Heavenly Emperor had not appeared.
But after a moment's thought, Chen Zhao understood why.
The Undying Heavenly Emperor's transformation required an extremely long time.
After devouring the Taiyin and Sun Two Human Emperors in succession, he was likely still undergoing transformation.
The Undying Heavenly Emperor should have completed his transformation during the years before the Mars Divine War.
In order to bathe in Emperor Blood once more and transform again, he had triggered the earth-shaking Mars Divine War.
But with Chen Zhao's current strength, there was no need for him to fear the Undying Heavenly Emperor.
In the past, he had feared the Undying Heavenly Emperor because he was wary of a sneak attack during his Late-Life Transformation.
On the path of the Mortal World Immortal, one's strength weakened whenever one reached the late years and entered transformation.
What the Undying Heavenly Emperor excelled at most was ambushing others in their late years.
From ambushing Emperor Lord on the Path to Immortality during the Mythological Era, to ambushing Ye Fan in the Heavenly Emperor Era,