This is a story that weaves together people and a town. A coal mining town crowded with small-scale excavators, commonly known as the "Hakoniwa." In this town that changes daily like a labyrinth, there's a girl named Kagari who runs a mapmaking business and a boy named Yuya who dreams of breaking free from the "Hakoniwa." Eventually, the two, along with the unique residents of the town, find themselves confronting a conspiracy that shakes the entire town. The fate of the” Hakoniwa" depends on Kagari's drawings on the map.
"Big trouble! There's been a 
cave-in on prison grounds!"
"!كارثة! انهيار أرضي في ساحة السجن"
„Oh nein! Ein riesiges Loch
mitten auf dem Gelände!“
¡Cielos! ¡Se abrió un boquete
dentro de la prisión!
¡Madre mía!
¡Hay un agujero en la cárcel!
Et un jour, paf,
une giga crevasse s’est creusée !
È gravissimo! Un cratere nella prigione?
Essa não! Houve um desmoronamento
dentro da prisão!
«Кошмар! У нас во дворе
здоровенный обвал!»