The Path of the Underworld Blood Emperor

The Blood Emperor of the Netherworld, the tenth of the ten Blood Emperors of Blood City, stands guard over the City of Netherblood.

From the start, he brutally crushed the Demon King and forced him into submission. Afterward, he became the hero's teacher, keeping a close eye on his every move.

But no one could have imagined that even greater powers existed beyond him, and that he was merely a great general guarding the city for the lord behind him.