The anime also revealed its theme song artists.
The upcoming anime based on Petit Depotto’s sci-fi social deduction RPG, Gnosia, has revealed new information during the Aniplex Online Fest event on Saturday, 13 September. The announcements include a new trailer, theme song artists, and a premiere date of 11 October, 2025.
Gnosia details and other information
The opening theme song titled "Bake no Kawa feat. Kobo Kanaeru, Kasane Teto, Giga & Teddyloid." is performed by MAISONdes, while Ling Tosite Sigure is performing the ending theme song “Loo%Who%”.
The anime is all set to premiere on Tokyo MX, BS11, Tochigi TV, Gunma TV, TV Aichi, MBS, and AT-X, while Abema and d Anime Store will stream the series in Japan. So far, there have been no announcements regarding a global premiere.
The cast for Gnosia is as follows:
- Yuri - Chika Anzai (Mei Tsuchiba in Magilumiere Magical Girls Inc., Yumeko Shikiya in Makeine: Too Many Losing Heroines)
- Setsu - Ikumi Hasegawa (Masaki in Mayonaka Punch, Kotoha Tachibana in Wind Breaker)
- SQ - Akari Kito (Nezuko Kamado in Demon Slayer: Kimetsu no Yaiba, Hina Chono in Blue Box)
- Raqio - Hiroki Nanami (Kenshin Uesugi in Nobunaga The Fool, Sei Satomi in Kageki Shojo!!)
- Gina - Asami Seto (Mina Ashiro in Kaiju No.8, Yori Asanagi in Whisper Me a Love Song)
The character of Yuri is original to the anime, but Setsu, SQ, Raqio, and Gina feature heavily in the game. The voice actors for these characters also provided the voices in-game, so they are reprising their roles for the anime.
The anime adaptation is set to be directed by Ryoya Ichikawa with animation production by domerica, along with series and composition script by Jukki Hanada. The character design is being handled by Arisa Matsuura. The rest of the staff members are:
- Art director: Mayumi Kamata, Mari Takada
- Director of photography - Tatsuya Nomura
- Music: Hideyuki Fukuzawa
- Sound director: Ryosuke Naya
- Sound effects: Kiyokata Kawada
- Sound production: Studio Mouse Jinro
- Supervision: Matsuzaki Fumiya
Gnosia first came out as an indie visual novel game developed by Petit Depotto, and was released on 20 June, 2019 on the PlayStation Vita. The game has stellar reviews and recognition, even being recognised as the best indie game of 2019 by Famitsu. The game is currently available on Steam, Nintendo Switch, PlayStation 4, PlayStation 5, Xbox One, and Xbox Series X|S.
The official blurb for the plot of the game in Steam is:
The Gnosia lie. Pretending to be human, they’ll get in close, trick and deceive, and then eliminate one victim at a time…
The crew of a drifting spaceship, facing off against a mysterious and deadly threat known as the “Gnosia” and having no idea who among them is really the enemy, formulate a desperate plan for survival. The most suspicious among them will be put into “cold sleep” one by one, in an effort to rid the ship of Gnosia.
