This narrative intertwines the lives of individuals with those of a town. It is a coal-mining settlement packed with small-scale excavators, widely referred to as the "Hakoniwa." Within this town, which shifts daily like a labyrinth, lives a girl named Kagari who operates a mapmaking business, and a boy named Yuya who aspires to escape the "Hakoniwa." Eventually, the pair, together with the town's distinctive residents, face a conspiracy that rattles the entire community. The destiny of the "Hakoniwa" rests on Kagari's drawings on the map.