The Hero Defeats the Bullies

A hero who saved the world by defeating the Demon King is summoned to Suseong South High School, a notorious gathering place for gangs and bullies. Though he comes from another world, he faces a very different kind of enemy in the students who make life miserable for others. The hero refuses to use his powers against humans, but the bullies seem as fearsome as demons. He begins teaching them a lesson and must find out whether he can defeat them and return to his own world.