In the distant future, humans reside in close quarters within "colonies" divided by rock. Beyond these settlements, a hazardous, untamed region known as "the Labyrinth" continues to grow. Individuals who risk their lives to explore and map this territory are called "Markers." The story follows Memempu, a young girl aspiring to become a Marker, and Gagumber, a former Marker. This unlikely father-daughter duo now ventures into the Labyrinth! "If there's no path, dig one!"