Coamix Inc. and NO MORE Inc. will be holding an interactive exhibition, "UMEZZ HORROR HOUSE ~The Drifting Classroom and Thought Experiments Exhibition~," to commemorate the 90th anniversary of the birth of Kazuo Umezu, the "God of Horror Manga," starting July 17, 2026 (Friday) at GALLERY ZENON, an art gallery in Kichijoji, Tokyo, operated by Coamix Inc.
◾️A new "horror house" project has been launched.
This event is an immersive experience where you yourself "drift" into the desperate world of Kazuo Umezu's masterpiece, "The Drifting Classroom." Participants will face the terror of their ordinary daily lives being threatened, as well as the psychological horrors of "madness" and "ego" lurking within the human psyche. In collaboration with NO MORE Inc., a company that handles experiential entertainment, you can enjoy an immersive horror experience that combines the elements of the "Thought Experiment Exhibition," which attracted 20,000 people and garnered significant attention.
■The appeal of UMEZZ HORROR HOUSE
① This isn't an exhibition to view original artwork. It's an "immersive horror house" where you are the star.
As a reader turning the pages, you now find yourself in the world of the story. Transcending time and space, you become immersed in the desperate world of Yamato Elementary School, which has been transported to an isolated wasteland, and you yourself "drift" through it.
② An extraordinary experience where you face the "fear of your everyday life being threatened."
Having had your safe daily life taken away, you are confronted with "life and death" and "raw ego." Doubts and mental burdens that cling to your mind slowly erode your values.
③ A horror experience × thought experiment that shakes up human morality
This isn't just a horror house designed to scare you. The "Thought Experiment Exhibition" team's ingenuity will expose the hidden true nature of you and your companions. The question, "Why did I make that choice at that time?" will vary from person to person, and afterwards you'll want to share your thoughts with someone. It's a psychological horror entertainment for modern people living in unstable times.
■ "UMEZZ HORROR HOUSE ~The Drifting Classroom and Thought Experiment Exhibition~" Story
Manga "The Drifting Classroom" © Kazuo Umezu
An extreme "thought experiment" unfolds in the mad world depicted by Kazuo Umezu.
You were there as a test subject, but the moment you stepped into the venue, your everyday life suddenly crumbled away.
What unfolded before my eyes was a completely different world from where I had been just moments before!
You yourself have been "drifted" into the desperate world of "The Drifting Classroom"...!
Guided by your guide, you will be forced to make one extreme choice after another.
In a desperate situation with no escape, who will you trust, and what will you sacrifice?
When you confront a question with no right answer, your true self is laid bare.
■ About "The Drifting Classroom"
© Kazuo Umezu
A unique and epic science fiction masterpiece that shines brilliantly in the history of manga.
'Drifting Classroom'
In a secluded land beyond time and space, the love and courage of boys desperately trying to survive while battling the shadow of death!
A sci-fi horror suspense film that warns of the fate of humanity with no tomorrow.
One morning, a massive explosion occurred at Yamato Elementary School. All that remained was a huge, deep hole that gouged out the entire school grounds. The school building and everything else had vanished without a trace! Where did the children and teachers disappear to...?
■ About Kazuo Umezu
Born in 1936 in Koyasan, Wakayama Prefecture, and raised in Nara Prefecture. He began drawing manga in the fourth grade of elementary school, and made his debut in his third year of high school with the publication of "Another World" and "Brother and Sister in the Forest" as single volumes from Tomobook Co., Ltd. His hit works such as "Snake Girl" and "Cat-Eyed Boy" earned him the title of "God of Horror Manga." He won the Shogakukan Manga Award for "The Drifting Classroom."
Meanwhile, he also showcased his comedic talent in "Makoto-chan," where the catchphrase "Guwashi" became a social phenomenon. In addition, he has produced numerous hit works such as "Orochi," "Baptism," "I Am Shingo," "God's Left Hand, Devil's Right Hand," and "14 Years Old." He also holds many other titles, including talent, singer, and film director, and is active in various genres.
In 2018, he won the "Heritage Award" at the Angoulême International Comics Festival in France for "Watashi wa Shingo." In the same year, he received the Commissioner for Cultural Affairs Award. In 2022, he released "ZOKU-SHINGO," his first new work in 27 years. In 2023, he received the "Tezuka Osamu Cultural Prize Special Award."
■ What is the Thought Experiment Exhibition?
The "Thought Experiment Exhibition" is a new interactive entertainment experience that experiments with the question, "If you could go to another world, how would you live?" It's not just an exhibition; you step into a "what if" world and, as a character in the story, answer various questions, gradually revealing the values you cherish that you're not usually aware of—offering a truly immersive experience.
The event has attracted over 20,000 people in total across Tokyo and Osaka, with tickets selling out in every location. On social media, the event has garnered significant attention, with comments such as, "I keep thinking about why they chose that answer," and "I saw a completely different set of values from my friend," highlighting the profound impact it has had on people even after they've experienced it. The script was written by Dizumu of Kyoten Douchi Club, who also worked on the classic TRPG "Katashiro."
Scenes from past "Thought Experiment Exhibitions"
■ Event Overview
Event Name: UMEZZ HORROR HOUSE ~Drifting Classroom and Thought Experiment Exhibition~
Event Period: July 17th (Fri) - September 6th (Sun), 2026 *Closed on Tuesdays (Open on August 11th)
Opening hours: Weekdays 13:00-20:00 (last entry 19:00) / Weekends 11:00-20:00 (last entry 19:00)
Venue: GALLERY ZENON
2-11-1 Kichijoji Minamicho, Musashino City, Tokyo 180-0004
Admission fee: Weekdays: 5000 yen (tax included) Weekends: 5500 yen (tax included)
Student discount: 4,500 yen (tax included) *Limited to the 4:00 PM showing on weekdays
Capacity: Maximum 7 people per group
Experience duration: Approximately 60 minutes
Ticket sales: Sales begin June 19, 2026 (Friday)
Website:https://umezz-horrorhouse.jp
Ticket website:https://t-dv.com/umezz-horrorhouse
Organizers: Coamix, NO MORE
Produced by: NO MORE
Special cooperation: UMEZZ Foundation, Shogakukan-Shueisha Productions
[Early Bird Bonus] Be among the first to experience the world of UMEZZ HORROR HOUSE!
We will be giving away an "original gift" to everyone who visits us between July 17th (Fri) and July 31st (Fri). Be the first to experience unknown terror at the start of summer.
■ About GALLERY ZENON
This art gallery, operated by manga publisher Coamix Co., Ltd., focuses on manga and anime. Located in Kichijoji, Tokyo, it serves as a new hub for manga culture, hosting planned exhibitions and events. It has a track record of attracting over 10,000 visitors in just two months.
URL：https://gallery-zenon.jp/
■ About Coamix Co., Ltd.
Established in 2000, the company's core business is the editing, publishing, and copyright management of manga works. Notable works include "Record of Ragnarok," "Wakako-zake," "Fist of the North Star," and "City Hunter." In addition to providing works through multiple media such as the magazine "Monthly Comic Zenon," the web manga site "Zenon Editorial Department," and its own app, the company also engages in artist training at regional bases and educational projects through industry-academia-government collaboration.
URL：https://www.coamix.co.jp/
■ About NO MORE Co., Ltd.
NO MORE is a startup founded in 2024 that plans and develops "immersive entertainment" that stimulates the five senses in real-world spaces.
With a mission to design unprecedented experiences and create memorable immersive experiences, we deliver new, Japan-born experiential entertainment to the world through collaborations with content holders, commercial facilities, and developers both domestically and internationally.
URL：https://nomore.jp/
■SNS Accounts
X： https://x.com/UMEZZ_Horror
instagram： https://instagram.com/UMEZZ_HorrorHouse
TikTok:https://www.tiktok.com/@umezz_horrorhouse