Slaughtering Thousands Under The Demonic Sky

This was crazy!

The huge Bloody Space River was now in a frenzy. This wasn't because the Primeval Underworld Monarch had raised his cultivation Dao to the Extreme Boundary while he was at the Galaxy-Grade.

It was because of a promise made by the Primeval Underworld Monarch.

To a Galaxy-Grade powerhouse, the gap to becoming a Celestial Domain-Grade was a pit that was very difficult to cross.

However, for the Primeval Underworld Monarch, this pit didn't exist. His Dao had already achieved perfection. As long as he was willing, he could ascend beyond the Galaxy-Grade and gain a Celestial Domain-Grade cultivation base.

How could such a person promise this kind of undertaking? This proposition was just too tempting for most martialists!

After all, even the absolute strongest existences within the Galaxy-Grade would encounter problems that couldn't be solved. A promise by a Celestial Domain-Grade powerhouse was really important to them.