As a Devil, I Just Want to Live a Good Life

Su Yu, a college student, traveled to the world of swords and magic. He originally thought he would be happy all the time, but he was shocked the moment he saw the system profession. "Holy shit! Why is my profession a Demon King!" "I haven't even been promoted to level one yet!" After others traveled through time and became Demon Kings, they always thought about how to dig holes for the Hero, but Su Yu, a college student, just wanted to practice leveling up and retire... A hundred years later, the aging Hero looked out the window with regret. Although the world was stable, he could not find the Demon King throughout his life. Demon King Su Yu, who was hiding in the human city-state, stopped what he was doing and sneezed inexplicably. "Who misses me so much?"