"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!
He turns towards the voice that echoes 
in the darkness and sees his own father!
يلتفت نحو الصوت التي يتردد
!صداه في الظلام ويرى والده
Der Junge wandte sich der Stimme zu
und fand im Dunklen seinen Vater vor.
Al seguir la voz que hacía eco
en la oscuridad, ahí estaba su padre.
Al seguir la voz que hacía reverberaba
en la oscuridad, ahí estaba su padre.
En suivant la voix qui résonnait
dans la nuit, il découvrit son père.
Si volta verso la voce che echeggia nelle tenebre
e si trova davanti suo padre.
Ao seguir a voz que ecoava
na escuridão, lá estava seu pai.
Мальчик наконец обернулся на голос
и увидел позади себя отца!