Ayush spent ten years diligently practicing the art of “swinging a sword.” When a single stroke from him could flatten an entire forest, he finally left his mountain, brimming with confidence. But the world's response was: “You only know one move? You're not qualified!” In the end, with help from his friends, this mightiest warrior, whose power could destroy the heavens and earth, became the lowest-ranked F-class adventurer, stuck doing odd jobs like weeding and sweeping. And so the strongest “odd-jobber” in history was born. He uses his power to sweep streets and clear “roadblocks,” and even happens to save an “ordinary girl” who keeps saying strange things.