Immersive Performance 'Our Cinema' at Iwanami Kanda-Jimbocho Building: A Worldline Choice Game Where Audience Decisions Shape the Story, Held in the 10th-Floor Mini-Theater During Its Final Month Before Closing After 54 Years of History, Starting August 1 (Sat)

The 'Our Cinema 2026' Production Committee will present an immersive performance and worldline choice game titled 'Our Cinema,' where the story unfolds based on audience choices, at the movie theater in the Iwanami Kanda-Jimbocho Building—a landmark of Japan's mini-theater culture scheduled for demolition. The event will run from August 1 (Sat), 2026, to August 31 (Mon), 2026. Ticket sales will begin on July 1 (Wed) at 18:00.

This production is an experiential entertainment that begins with a screening of a mysterious old film reel discovered inside a theater on the verge of demolition, leading audiences into a world different from reality.

The script is written by TRPG scenario writer Dizum, known for creating 'Katachi-ro,' a TRPG scenario that has been adapted into stage and film productions. The project is conceived and produced by 'Yagura,' a storytelling experience unit that bridges narrative and technology. Offering a unique twist on traditional immersive theater, this 'walking TRPG experience' brings the 'freedom and weight of choice' into physical space, delivering a fresh form of immersion.

Experience this one-month-only worldline choice game, where the 54-year history of the venue and the cast's powerful performances create a deeply immersive atmosphere. Don't miss this final opportunity to enter the Iwanami Kanda-Jimbocho Building, which will be inaccessible after this performance due to scheduled demolition.

Official website URL: https://bokutachi-no-eigakan.ya-gu-ra.com/

Event Overview

・Title: Worldline Choice Game 'Our Cinema'

・Dates: August 1 (Sat), 2026 – August 31 (Mon), 2026

・Venue: 10th Floor, Iwanami Kanda-Jimbocho Building (2-1-1 Kanda Jimbocho, Chiyoda-ku, Tokyo 101-0051)

・Duration per session: Approx. 70 minutes

・Capacity: Up to 24 participants per session

・Admission fee: Weekdays 5,000 JPY (tax included), Holidays 5,500 JPY (tax included)

・Ticket sale start: July 1 (Wed) at 18:00 for the initial period

・Ticket purchase method: Details available on the official website

・Organizer: Our Cinema 2026 Production Committee

・Official website: https://bokutachi-no-eigakan.ya-gu-ra.com/

・Official SNS: https://x.com/yagura_gumi

※Latest updates will be posted regularly on SNS.

Worldline Choice Game 'Our Cinema' Story

An old, historic movie theater, soon to be demolished.

Deep inside, a single ancient film reel is discovered.

No records exist in the logbook. No screening date, production year, or director’s name is known.

Before the theater vanishes forever,

this mysterious film will be screened—just once.

We—the audience—gather at the theater for the screening.

What appears on the screen is

a strange world that has taken a slightly different path from our reality.

And then, 'we' are led into the very movie we thought we were just watching—

Whose voice will you trust? Where will you go?

If your choices could change the ending of the story,

then let us step into another worldline—our own.

Experience Concept

This performance aims to offer a new kind of immersive experience, distinct from conventional immersive theater—where you yourself become a pivotal point in the narrative, actively shaping the story. 'Our Cinema' is a 'worldline choice game' in which listening to characters’ voices and making collective choices as 'we' drives the story forward.

Scriptwriter Dizum has embedded the core essence of TRPG—'the freedom and weight of choice'—into a real-world immersive experience.

The story begins with a screening event at a theater awaiting demolition, transporting participants into an alternate reality. Feel the breath of the characters, listen to their voices, and move forward with your own feet. Your actions within this space will transform how you perceive the world.

Key Features of the Performance

1 Final chance to enter the historic Iwanami Kanda-Jimbocho Building theater before demolition

This event marks the final public program at the Iwanami Kanda-Jimbocho Building before its scheduled demolition, making it the last opportunity to enter the venue for one final month. Originating from a theater that has screened numerous masterpieces since the 1960s, the performance allows audiences to feel the weight of history within the building’s preserved atmosphere, enhancing the depth of immersion.

2 A new immersive experience where audience actions influence the story

This performance offers a collective, immersive experience in which participants are drawn into the narrative as themselves, making worldline choices throughout. Like a 'walking TRPG,' the content evolves based on participants’ discoveries, conversations with cast members, and personal decisions, resulting in varying story developments and endings. We encourage you to attend multiple times.

3 Original script by Dizum, TRPG scenario writer behind 'Katachi-ro'

The script is penned by Dizum, the acclaimed creator of the TRPG scenario 'Katachi-ro,' which has been adapted into stage and film productions. Deeply involved in the concept and world-building, this is a passionate project that invites audiences to reflect on themselves and their values through the act of making choices—just as 'Katachi-ro' does.

About the Iwanami Kanda-Jimbocho Building

The Iwanami Kanda-Jimbocho Building, the venue for this event, has been a beloved landmark in Tokyo’s Kanda-Jimbocho district for over half a century. Completed in 1967, it has stood at the Jimbocho intersection, symbolizing the heart of Japan’s publishing culture. Though currently closed, it once housed a mini-theater renowned for unearthing hidden cinematic gems and served as a cultural hub introducing outstanding films from around the world.

With demolition scheduled in the future, this performance offers the final opportunity to enter the building.

Production Team

Script: Dizum

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TRPG scenario writer, playwright, director, and streamer.

Centered on creating and streaming TRPG scenarios, Dizum also crafts scripts for experiential content that immerses participants in narratives. His seminal TRPG scenario 'Katachi-ro' gained massive online acclaim and was adapted into stage and film productions. He actively works across genres, transcending TRPGs to include theater, games, live streams, and real-world events.

Major Works & Projects

・TRPG Scenario 'Katachi-ro'

・Taxi Talk RPG 'SOOPER SIGN / Super Sign' / META TAXI

・Self-Immersive Experience 'Thought Experiment Exhibition' / NO MORE Inc

・Mystery Stage 'AGASA' / No Meets × TV Asahi

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Even if you enter a movie, you probably can't do much. If you don't even feel like the protagonist of your own life, stepping into a film won't suddenly change that. But maybe—just maybe—there's a turning point, something you finally notice through a story. Perhaps the missing pieces to becoming the protagonist are hidden somewhere. That's what I keep in mind when creating stories.

Concept & Production: Yagura

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'Yagura' is a 'narrative experience planning unit' that bridges storytelling and technology. Comprised of members with diverse backgrounds in immersive exhibitions, puzzle-solving events, and stage direction, Yagura creates novel experiences by capturing memories and voices embedded in places and objects, transforming them into unified experiences.

Credits

Organizer: Our Cinema 2026 Production Committee

Script: Dizum

Concept: Yagura

Production: salvo / TYO

Direction: Manaba Inoue