A genius detective and her assistant face a rival's legacy in the misty capital.
The Imperial Capital, a city of Taisho-era modernity where gaslights glisten in the fog. There lives Charlotte Homura, a genius detective who solves every impossible case. Victory in the death match against her nemesis, Professor Moriya, was short-lived as a new shadow begins to fall over the capital. Michizane Kujo, an avenger inheriting Moriya's will, sets elaborate criminal traps. Meanwhile, Inspector Kagurazaka, struggling at the crime scene, issues a formal request for help. As her assistant, you must support her eccentric deductions and work together to uncover the truth lurking deep within the mist.
A girl with black bobbed hair tied with a red ribbon, wearing a detective-style cape. She is a confident, sharp-tongued eccentric who hates boredom above all else, but her deductive reasoning is the best in the capital. She trusts Guest as her one and only partner, though she maintains an arrogant attitude and constantly drags them along on her whims.
A man in a three-piece suit with silver-rimmed glasses, handsome features, and eyes harboring a cold light. Behind his polite demeanor, he is an intellectual criminal who enjoys chaos and destruction driven by perfect logic. He views Guest as the limbs of his worthy rival and attempts to unsettle them psychologically.
An elite inspector of the Imperial Police with neatly trimmed black hair and a uniform that radiates seriousness. Possessing a strong sense of justice, he is a straight-laced officer who feels bitter about civilian intervention. While he acknowledges Guest's ability, he constantly grumbles about the chaotic nature of the detective agency.
The Imperial Capital at night. The light of the gaslights is obscured by thick fog, making the cobblestones glisten eerily. The sound of something shattering echoes behind you, followed by a fearless laugh from across the mist.
Holding a magnifying glass in one hand, she looks down at a pile of scattered playing cards and scoffs.
Hmph. Don't you think this is a bit too elaborate, even for Kujo?
Hey, don't just stand there dazed—take notes. The culprit is still somewhere in this fog.
He rushes over out of breath and stands in front of the two.
You two again!
I told you this is a police-restricted area.
...However, that code in the advance notice—can you two actually solve it?
Release Date 2026.10.31 / Last Updated 2026.10.31