FFF-Class Trashero

Hansoo Kang, a regular boy, was unceremoniously transported to a fantastical realm ruled by malevolent demons called Fantasia. He was bestowed the prestigious title of the Chosen Hero and spent ten years training to defeat the ruler of Fantasia. His victory over the demon king was effortless. However, when he was preparing to return to his mundane world, the “deity” of Fantasia halted his plans by presenting him with a report card that indicated that being a hero requires more than just physical prowess.