Chapter 437: The Furious Ziyuan Ancestor

Black Demon Heaven, an unknown realm, where the rules of the Great Dao circulated.

Eight Martial Gods of the Great Ultimate Reasoning sat atop clouds, their forms hidden from view.

Black flames burned, crackling with snap and pop sounds.

In the indistinct mist, the sounds of Heavenly Tribulation seemed to echo.

At this moment, six Martial Gods of the Great Ultimate Reasoning gathered to refine the Blood-Refining Enlightenment Pill Medicine.

This Pill Medicine could significantly enhance the Cultivation Level of Black Sword, shortening his growth period.

Commanded by the most supreme elder of the Black Demon Abyss, with the third elder taking the lead, the six available Great Ultimate Reasoning Martial Gods spent their vital energy to create it.

"Set!" The third elder spoke.

The black flames danced, the surrounding space burned to collapse, then quickly realigned.

Seeing this, the other five elders each threw their Immortal Spirit Qi into the flames.