"Yes, Ootsuji Detective Agency" In the purple smoke lies a faint dream, and in the town, rumors swirl like smoke. Now, facing the strangeness of the "mass disappearance" bewildering society, detective Soutarou confronts it! With no witnesses and unclear intentions, the identity of the "ominous tracks" that always appear in its footsteps... In search of clues, the detective delves into the underground realm of the town called "Kuragari." There, the encounter with the black iron armored train and its commander, Tanne, will significantly shake the fate of the detective!
Who knows how much 
treasure they've stored up?
من يدري كم كنزًا خزّنُوا؟
dass es auf den Rücken der gemeinen
Bevölkerung errichtet wurde.
¿Cuánta fortuna han acumulado ahí?
¿Cuánta fortuna han acumulado ahí?
ils ont dû amasser
une véritable fortune.
chissà quali tesori hanno accumulato al suo interno...
Quanta fortuna eles acumularam?
Какие же богатства
они успели скопить за долгие годы?!