Murder mystery calling app "Uzu" to sequentially release three games, including a scenario based on "Ura Baito: No Escape," starting this month
Note: the original Japanese article can be found at:
https://www.4gamer.net/games/999/G999905/20251003015/
Editorial Department: Yawaragi | 2025/10/03 03:52 (UTC)
Shogakukan today (October 3, 2025) announced that it will sequentially release three games based on the manga series Ura Baito: Escape Forbidden, currently serialized on the manga app “Manga One,” within the murder mystery voice chat app “Uzu.”
The three titles unveiled are:
“Ura Baito: Escape Forbidden – The Mystery of Tatsuko,” “Detective Sid Updyke: KOBUSHI CLUB,” and “Old Schoolhouse Horror Murder Case.”
Among them, Ura Baito: Escape Forbidden is a horror manga that began serialization in January 2020 on the manga app “Manga One.” It tells the story of two women who take up dangerous underground jobs in pursuit of large sums of money, only to be relentlessly hunted by supernatural forces and humans alike.
The Uzu-exclusive title is based on the “Museum Staff” arc, included in Volume 10 of the manga’s collected editions. The scenario centers around a portrait of a single woman named “Tatsuko,” which prewar artist Shōkaku Shōtarō stubbornly preserved as his artistic motif throughout his life. In-game, terrifying panels from the original manga appear at strategic moments to heighten suspense. The game costs 560 coins (¥800 including tax), supports two players, and will be released on November 7.
For more details about the other titles, please refer to the release statement below.
Thumbnail image for Gallery No.002 / Murder mystery voice chat app “Uzu,” releasing three games based on the scenario from “Ura Baito: Escape Forbidden” Thumbnail image for Gallery No.003 / Murder mystery voice chat app “Uzu,” releasing three games based on the scenario from “Ura Baito: Escape Forbidden”
Shogakukan’s Mystery Solving Series – Official Website
<The following is the original press release content, reproduced as-is>
Shogakukan will launch three new games based on the manga Ura Baito: Escape Forbidden, among other titles, via the murder mystery voice chat app “Uzu,” marking its official entry into the online puzzle game market this autumn.
“Detective Sid Updyke: KOBUSHI CLUB”—featuring voice actor Jun Fukuyama as the detective—will be released today, October 3!
Shogakukan will sequentially release three murder mystery (hereafter “MadaMis”) games based on the manga Ura Baito: Escape Forbidden, currently serialized on the manga app “Manga One,” via the MadaMis voice chat app “Uzu” (operated by Sally Inc.), starting today, October 3. By leveraging popular manga series and renowned voice actors, Shogakukan enters the digital puzzle game market.
Official Website
https://dps.shogakukan.co.jp/mdms
◆ “Ura Baito: Escape Forbidden – The Mystery of Tatsuko”
Ura Baito: Escape Forbidden is a horror manga that began serialization in January 2020 on the manga app “Manga One.” It follows two women, Kurogane Yume and Shiraumi Kazumi, who take up underground jobs to earn large amounts of money due to personal circumstances. The series gained popularity for its recurring plotlines where the heroines are relentlessly pursued by supernatural phenomena and human threats alike. To date, the manga has surpassed 2 million copies in cumulative sales and ranked fifth at the “Next Manga Awards” Web Manga category in 2021.
This new MadaMis is based on the “Museum Staff” arc from Volume 10 of the collected editions. The game features eerie panels from the original manga appearing at key moments to send chills down players’ spines.
The newly created title for this release is “The Mystery of Tatsuko.” It centers around a portrait of a single woman named “Tatsuko,” which prewar artist Shōkaku Shōtarō persistently preserved as his artistic motif.
Note: The original work and the game are fictional. They have no connection to any real individuals or organizations.
Note: As with the original comic, this game may significantly impact players’ mental and physical well-being. Please play responsibly and at your own discretion. Shogakukan shall not be held liable for any damages arising from gameplay.
Game Title: Ura Baito: Escape Forbidden – The Mystery of Tatsuko
Original Work: Shotarō Taguchi
Scenario: Hō
Character Voices (CV): Announced on release day
Number of Players: 2
Price: 560 coins (¥800 including tax)
Release Date: Friday, November 7, 2025
(C) Shotarou Taguchi・SHOGAKUKAN 2025
☆ Comment from the author, Shotarō Taguchi:
“This MadaMis lets you experience firsthand the terrifying world of Ura Baito: Escape Forbidden. Please enjoy it to the very marrow.”
[Comic Information]
Ura Baito: Escape Forbidden
By Shotarō Taguchi
Volumes 1–16 currently available
Image shows cover of the latest volume, No. 16
Price: ¥715–792 (including tax)
Published by Shogakukan
(C) Shotaro Taguchi 2025
https://manga-one.com/viewer/106455
◆ “Detective Sid Updyke: KOBUSHI CLUB”
Detective Sid Updyke is a psychic detective with the ability to foresee the future. The series began in 2019 with the release of the first packaged MadaMis title, Detective Sid Updyke: SLOTH PALACE, by RAMCLEAR Co., Ltd. As of May 2025, five titles have been released under this popular franchise.
This new game is an enhanced version of the previously unveiled web prototype titled “KOBUSHI CLUB.” It features renowned voice actor Jun Fukuyama as the detective’s character voice and other premium elements. This marks RAMCLEAR’s first release of a MadaMis title on the “Uzu” platform.
Note: Detective Sid Updyke is an NPC (non-player character).
Game Title: Detective Sid Updyke: KOBUSHI CLUB
Scenario: Tsugumi Toshizō
Character Illustrations: Ka-2 Nika
Detective Sid Updyke (CV): Jun Fukuyama
Narration: Yuzawa Yuuki
Production & Planning: RAMCLEAR
Number of Players: 2
Price: 490 coins (¥700 including tax)
Release Date: Friday, October 3, 2025
(C) RAMCLEAR 2025
◆ “Old Schoolhouse Horror Murder Case” (MadaMada’s MadaMis Collection)
Old Schoolhouse Horror Murder Case is a completely original beginner-friendly title created by the VR murder mystery group “Immersive Cloud.” It depicts a murder that occurs in an abandoned school after middle-school students sneak inside at night. The game uses manga-style panels for its introduction and ending sections, making it accessible even to players who dislike reading large amounts of text.
The artwork and character designs are handled by Ichiki Ikki, the comic artist behind Yaruminati, a serialized adaptation published in Coro Coro Comic in 2021 (a collaborative animated project between YouTuber Kirin and Plott). This is the first installment in the MadaMada Collection series, with “MadaMada,” an eerie yet cute storyteller, guiding players into a mysterious world.
Game Title: Old Schoolhouse Horror Murder Case (MadaMada’s MadaMis Collection)
Scenario: VR Murder Mystery Group “Immersive Cloud”
Comic & Character Design: Ichiki Ikki
Character Voices (CV): Announced on release day
Number of Players: 4
Price: 280 coins (¥400 including tax)
Release Date: Friday, October 24, 2025
(C) SHOGAKUKAN 2025
◆ What is the MadaMis Voice Chat App “Uzu”?
“Uzu” is a voice chat platform app that allows users to enjoy murder mystery games with just one smartphone. By installing the app, players can engage in deduction and discussion with fellow MadaMis enthusiasts nationwide. The app automatically handles all aspects of gameplay—from recruiting participants to managing game progression—making it easy for beginners to dive into scenarios without hassle. Currently over 1,000 scenarios are available, with more being added continuously.
https://www.uzu-app.com/