"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!
You think you can mock the Laughing 
Masks and survive in the Dark?
هل تظنون أنّ بوسعكم السخرية من الأقنعة
الضاحكة والنجاة في الظلمة؟
Dachtest du ernsthaft,
du könntest uns Fukumen
¿Crees que pueden salir vivos
de la Oscuridad tras ofender a mi banda?
¿Pensáis salir vivos de la Oscuridad
después de ofender a mi banda?
Tu crois qu’en te moquant de nous,
Ti prendi gioco delle Maschere Ridenti
Acha que pode atravessar Kuragari
em paz ofendendo meu grupo?
Девчонка,
ты посмела оскорбить «Масочников»!