"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!
They say you can find most of what you need 
to survive down in the darkness there...
يقال أنّ بوسعك إيجاد معظم ما تحتاجه
...للنجاة في الظلام هناك
Ein Schmelztiegel all jener, die zu einem
Leben im Verborgenen verdammt sind.
Dicen que ahí se encuentra
todo lo necesario para vivir como topo.
Dicen que ahí hay de todo
para vivir como un topo.
On y trouve tout le nécessaire
pour vivre sous terre, paraît-il,
Dicono che ci trovi tutto quello
che ti serve per vivere nell'ombra!
Tem praticamente de tudo
para viver no subsolo.
Хочешь жить как кротяра —
тебе прямиком туда.