Beef Tongue x Murder Mystery Experience Restaurant - "Gyutan Sakaba Tanto" Relaunches as "Kore Misu Kameido" in February 2026

Published: February 5, 2026
Beef Tongue x Murder Mystery Experience Restaurant - "Gyutan Sakaba Tanto" Relaunches as "Kore Misu Kameido" in February 2026

Korekara Mystery Co., Ltd. (Headquarters: Tokyo, CEO: Yuki Iida, Chief Advisor: Hikaru), which operates Murder Mystery businesses, has relaunched its franchise location "Kore Misu Kameido" in February 2026. The venue features experiential mystery game "Murder Mystery" as its main attraction.

Gyutan Sakaba Tanto, famous for its ¥550 all-you-can-eat beef tongue, has officially launched as an experiential dining restaurant where guests can enjoy Murder Mystery games. The venue is collaborating with 4 affiliated locations in the Kameido area, and reservations for performances began on February 5th, 2026.

What is Murder Mystery?

Murder Mystery is an "experiential mystery game" where participants take on the roles of characters and unravel the mysteries of incidents that occur within the story.

In recent years, as interest has shifted from "passive entertainment consumption" to "experiences that allow you to drive the narrative yourself," this format has gained popularity across a wide demographic from students to working professionals in their 20s to 40s, becoming increasingly popular nationwide.

Korekara Mystery's CEO Yuki Iida envisions "making Murder Mystery one of Japan's three major forms of entertainment" and positions it as "the era when stories shift from 'watching' to 'experiencing.'"

Features of Kore Misu Kameido

① Immersive Experience with Diverse Game Masters

Kore Misu Kameido combines restaurant management expertise with a team of Game Masters who excel in performance arts, creating highly immersive experiences.

The venue employs influencers affiliated with talent agencies and professional actors as Game Masters. This not only serves as an attraction point but also elevates the quality of performances. Through professional acting skills, participants can immerse themselves more deeply into the Murder Mystery world as story characters.

② Murder Mystery While Drinking, Discussion Sessions Over Meals

A major feature of Kore Misu Kameido is the ability to enjoy Murder Mystery "while drinking." During performances, participants can immerse themselves in the story with drinks in hand, and after the performance, they can enjoy discussion sessions over beef tongue and other dishes.

The venue will also incorporate "Murder Mystery games designed to be played while drinking alcohol," which Korekara Mystery plans to roll out in the future, offering special Murder Mystery plans that incorporate dining. This creates a new entertainment experience of "drinking x mystery solving" that only an izakaya can provide.

③ Flexible Operations Through 4 Affiliated Locations

Kore Misu Kameido collaborates with 4 affiliated locations in the Kameido area, enabling flexible accommodation based on party size and occasion. The venue can accommodate group bookings and private events. For private bookings, it's possible to run the same scenario simultaneously at multiple tables.

Murder Mystery performances will also be held at the following 4 locations in the Kameido area:

Gyutan Sakaba Tanto Kameido Honten
2-27-16 Kameido, Koto-ku, Tokyo 136-0071
https://x.com/gyutan_tanto

Yakitori Sankyu Kameido Honten
5-13-2 Kameido, Koto-ku, Tokyo 136-0071, Section 101
https://x.com/yuu___0316

Yakitori Sankyu x Gyutan Sakaba Tanto Kameido Honten Hanare
5-13-4 Kameido, Koto-ku, Tokyo 136-0071
https://x.com/yakitori39_ha

Yakitori Sankyu Kameido Yokocho
5-13-2 Kameido, Koto-ku, Tokyo 136-0071, Section 110

Scenario Introduction at Kore Misu Kameido

The venue offers a wide range of scenarios from light to hardcore, suitable for everyone from beginners to advanced players.

"Corpse and Hot Spring"

A murder case occurs at a hot spring inn. As 5 suspects grow suspicious of each other, a silencer-equipped handgun is found in the victim's changing basket, plunging the situation into deeper mystery.

Players: 4 to 5 people
Duration: Approximately 1 hour

"Moonstone Manor Murder Case"

Set in the American South in the mid-20th century. After a dinner gathering of 4 detectives, Lord Moonstone's body is discovered. Was it suicide or murder? Who is the culprit? A battle of wits among 4 detectives begins.

Players: 4 people
Duration: Approximately 1.5 hours

"Villa Murder"

A completely naked corpse is discovered in a villa's wine cellar. A slightly dark, adult-oriented Murder Mystery where the circumstances of quirky characters intertwine in complex ways. This scenario offers a thrilling experience in a short time, allowing casual enjoyment of authentic mystery solving.

Players: 5 to 6 people
Duration: Approximately 1 hour

Store Introduction Video

A feature video introducing "Kore Misu Kameido" has been released on the official Kore Misu YouTube channel.

The video features Korekara Mystery CEO Yuki Iida, the owner of Kore Misu Kameido, and collaborative members discussing the venue's features and future developments. It provides insight into the charm of "Gyutan Sakaba Tanto" as a restaurant and the atmosphere of performances.

https://www.youtube.com/watch?v=prmxa3dyZfg

Message from GM Leader Pfeiffer Matsui

I personally love mysteries, and I believe the appeal of Murder Mystery lies in how deeply you can immerse yourself and experience the story as a participant, rather than observing it as a third party.

What I value as a GM is not making participants mere spectators. I want them to perceive events unfolding before their eyes as "things happening to themselves" and enjoy the process of unraveling intricately intertwined intentions.

As GM Leader, I prioritize world-building and immersion level above all else, and I dedicate myself to creating an environment and providing support so that all GMs can confidently guide participants into the story world.

Message from GM Moeka Sasaki

Although both Murder Mystery and the GM role are new to me, I want to work my hardest to create a space where everyone can enjoy themselves.

I aim to build a venue where people who discover Murder Mystery through me, as well as those who already enjoy Murder Mystery, can each find satisfaction in their own way.

I want to grow as a GM so that I can become a welcoming entry point where first-timers can participate with confidence.

Future Developments at Kore Misu Kameido

Leveraging the strength of collaboration with talent agencies, the venue employs influencers and actors as GMs. The main focus will be "Oshi-mada" (playing Murder Mystery with your favorite talent), with plans to hold fan events that follow.

Because the venue is a restaurant, it will provide a new entertainment space combining Murder Mystery with small-scale drinking gatherings.

Venue Information

Store Name: Kore Misu Kameido
Address: 2-27-16 Kameido, Koto-ku, Tokyo 136-0071
(4-minute walk from Kameido Station)

Official Website: https://fno-mystery.co.jp/stores/kore_koremisu39/
Official X: https://x.com/kore_kameido
Official LINE: https://line.me/R/ti/p/@439rneme
Official Instagram: https://www.instagram.com/gyutan_tanto/

Performance Schedule and Reservations

Official X: https://x.com/kore_kameido
Official LINE: https://line.me/R/ti/p/@439rneme
Official Instagram: https://www.instagram.com/gyutan_tanto/

Customer Inquiries: Please contact via official X DM

About Korekara Mystery Co., Ltd.

Item Details
Company Name Korekara Mystery Co., Ltd.
Office 3-38-3 Ebisu, Shibuya-ku, Tokyo
CEO Yuki Iida
Chief Advisor Hikaru
Business Murder Mystery related businesses (training, scenario development, app development, event production, etc.)
Official Website https://fno-mystery.co.jp/
YouTube Channel https://www.youtube.com/@kore_mystery