Born in the depths of the labyrinth and nourished by the milk of monsters, the descendants of mankind developed extraordinary strength and resilient bodies. When they finally returned to the surface, they were known as “Dungeon Babies.” Among them, Kim Jinwoo emerged from the deepest part of the labyrinth. “I never sought power—I only wanted to survive.” From a lowly excavator to the ruler of the labyrinth, his journey is about to unfold.