
Serial Murder x Disappearance of a female secretary Uncover the hidden truth from these two intersecting perspectives.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
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Official stores with direct support.
Other games from the same series.
【Game System】
This is a mystery adventure game in which the player solves a series of difficult cases that occur in a fictional town called Marihama City in K Prefecture.
The player controls the main character in the scenario and solves the mystery by selecting commands in the conversation and deduction parts, and by gathering information and evidence that will provide clues to solving the case.
The story progresses by command selection, so even beginners can easily play the game.
【Story】
This case is a series of murders that have been occurring in and around Marihama-dai.
The victims are not connected to each other, and Detective Otonari, who sees that the situation is grave and has no clue how to solve it, requests you to help him solve the case.
The story begins with the assistant detective, Izuna Sagishima, who is working with the police to investigate the case.
Meanwhile, a detective agency is forced to do a half-assed job on the detective's behalf.
Masao Ikurumi, a scenario writer, is asked by a company to search for a person.
The woman he was investigating, Yumiko Hamakawa, was a contract employee working in the secretarial department.
After a month of work, she suddenly disappeared...
Izuna and Ikurumi. They encounter two incidents. What is the truth that awaits them at the end of it all?
【Character】

◆Ryosuke Kibukawa (癸生川凌介)
The director of the Kibukawa Detective Agency and a detective himself.
However, he is quite an eccentric character, often causing trouble and confusion for those around him, though he doesn't seem to care about it at all.
It’s completely unclear what he's thinking, but he has led the resolution of numerous difficult cases up to now.

◆Izuna Sagishima (白鷺洲 伊綱)
A detective assistant at the Kibukawa Detective Agency.
Though she is an assistant, she is exceptionally capable, and could likely solve most cases on her own.
However, like her superior, she is unaware of her own quirks. She has a rather eccentric personality, sometimes clumsy, but also sharp enough to make one wonder if it's all part of a calculated act.
◆Masao Ikurumi (生王 正生)
A game scenario writer.
Recently, he has mostly been working on mobile app projects, including turning cases involving the Kibukawa Detective Agency into adventure games for public release.
Because of this "favor," he can never quite stand up to Kibukawa or Izuna, and is always flattered by them, which leads to him being made to work for free.

Lowest tracked price: PLN 13.79 (Jul 7, 2026) · current best: PLN 22.99.
100% positive reviews all-time.
Right now the cheapest offer for G-MODEアーカイブス+ 探偵・癸生川凌介事件譚 Vol.6「対交錯事件」 is PLN 22.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for G-MODEアーカイブス+ 探偵・癸生川凌介事件譚 Vol.6「対交錯事件」 is PLN 13.79 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
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