Synopsis

During a peaceful moment after a difficult battle, the Demon Slayer Corps members suddenly find themselves surrounded by a mysterious light. Before they can react, Tanjiro, Nezuko, Zenitsu, Inosuke, the Hashira, and even their enemies are transported into a strange, massive theater that exists outside their world.

A mysterious voice explains that they have been brought there to witness a different universe — a world where countless possibilities exist and where they must react to another version of reality. With no way to escape, the entire cast is forced to sit together and watch the events of another timeline unfold, discovering new heroes, different choices, and unexpected versions of themselves.

The theater becomes a place where enemies and allies must temporarily put aside their differences as they witness the endless possibilities of the multiverse. They must now react to a world beyond their own understanding.

Characters transported to the theater:

Demon Slayer Corps

- Tanjiro Kamado

- Nezuko Kamado

- Zenitsu Agatsuma

- Inosuke Hashibira

- Kanao Tsuyuri

- Genya Shinazugawa

- Aoi Kanzaki

- Murata

The Hashira

- Giyu Tomioka

- Shinobu Kocho

- Kyojuro Rengoku

- Tengen Uzui

- Mitsuri Kanroji

- Muichiro Tokito

- Obanai Iguro

- Sanemi Shinazugawa

- Gyomei Himejima

Others

- Kagaya Ubuyashiki

- Amane Ubuyashiki

- Sakonji Urokodaki

- Muzan Kibutsuji

Upper Rank Demons

- Kokushibo

- Doma

- Akaza

- Hantengu

- Gyokko

- Gyutaro

- Daki

- Kaigaku

Lower Rank Demons

- Enmu

- Rui

- Other Lower Moons