Hero the Maximum

Story:

‘I want to become number one.’ It didn’t matter what category he became number 1 in, but incompetent South Korean highschooler ‘Han Gangchi,’ wanted solely to be the best in something. He stumbles upon an astounding talent in him and… That was the ‘hero’s’ power? In a peaceful time where evil and good are indistinguishable, he and the other heroes begin their merciless purge of the villains!