When the surface world fell, humanity didn't just hide; they adapted. In the deepest, most suffocating corners of the labyrinth, a new kind of human was born. Kim Jinwoo is a Dungeon Baby, raised on the essence of monsters and forged by a world that wants him dead. While the rest of humanity dreams of the sun, Jinwoo knows only the cold stone and the hierarchy of the deep. This is a story about a boy who didn't just survive the dungeon; he became its favorite son.