C180 Sacred Technique Empire Chapter Battle of the Undead Academy

Western Region of the St. Magic Empire.

The River of Death was once an ordinary river, until a great war broke out tens of thousands of years ago. A large number of Seventh Order and above experts had fallen here. Their resentment did not dissipate, and their corpses turned into powerful undead spirits. The river water had turned into water of death, and it was called the River of Death