After the Fourth Calamity Arrived, I, an Evil God, Became a True God

I am the most terrifying evil god on the Elf Continent. Because of the blood sacrifice of countless elves, I was besieged and killed by powerful humans and the various Elf Kings. My remnant soul was sealed in a stone statue as a warning to future Elf trainers. Three thousand years later, the headmaster of the Elf Academy led the new students to their classes, and as usual, he gave me a thorough dressing-down. But when night fell, this generation of new students secretly returned, pounding their chests and crying out, "Evil God, there were too many people during the day, we could only join in the cursing, please don't take it to heart!" "Please, please give me back that thing that can strengthen higher-level elves by sacrificing lower-level ones!"