A young man is reincarnated as Leirus, a young boy who is destined to defeat the demon king and become a hero - or so he thinks. Instead, he is forced into slavery and is resigned to die. When he turns fifteen, he barely escapes a chimera attack while being transported to a mine. Starving and alone, he is miraculously saved by Corona, the kind-hearted daughter of a dining hall owner. Leirus becomes an adventurer and experiences human kindness for the first time. But his newfound safety is short-lived, as the chimera he once escaped returns to haunt him. In order to pay back those who have helped him, Leirus must confront his old enemy and stand up as the hero he was meant to be.
