Square Enix officially announced PARANORMASIGHT Alt FILE 25: Adachihime to Senju Nyanya Fushigi on November 12, 2026, as its latest collaboration with Catrip, an interactive mystery experience played by visiting real-world locations. Sales of the new mystery kit begin December 5, 2026, inviting participants to explore the Senju district of Tokyo while visiting temples, shrines, and historical landmarks to solve puzzles. The project marks the second collaboration between PARANORMASIGHT and Catrip, following an earlier experience set in Sumida.
Unlike the main video games played on PC, consoles, or smartphones, Alt FILE 25 is a mystery-walking experience that takes place in the real world. Its latest storyline draws on the legend of Princess Adachi, a local tradition said to have been passed down for approximately 1,300 years in northern Tokyo. Senju also has connections to the setting of the official PARANORMASIGHT FILE25 spin-off manga, which previously expanded the franchise's supernatural mysteries into the Kita and Adachi areas. Although the sales launch has been confirmed, the new kit's price, estimated playing time, and purchasing arrangements have not yet been reliably established.
Quick Summary
- Title: PARANORMASIGHT Alt FILE 25: Adachihime to Senju Nyanya Fushigi
- Japanese title: パラノマサイト Alt FILE 25 足立姫と千住にゃにゃ不思議
- Full Latin title status: editorial romanization, not confirmed as an official global title
- Franchise: PARANORMASIGHT
- IP owner: Square Enix
- Collaboration: PARANORMASIGHT × Catrip
- Format: real-world mystery-walking experience
- Categories: immersive mystery walk, puzzles, tourism, supernatural storytelling
- Product: interactive mystery-solving kit
- PARANORMASIGHT–Catrip collaboration: second
- Announcement date: November 12, 2026
- Sales start: December 5, 2026
- Country: Japan
- Playing area: Senju, Tokyo
- Exploration locations: temples, shrines, and historical landmarks
- Story inspiration: the legend of Princess Adachi
- Age of the legend: approximately 1,300 years
- Core concept: exploring folklore while solving puzzles
- Original franchise title: PARANORMASIGHT FILE23: The Seven Mysteries of Honjo
- First main game release: March 9, 2023
- Previous collaboration: PARANORMASIGHT Alt FILE 23 Honjo Nyanya Fushigi
- Previous experience location: Kinshicho and Ryogoku, Sumida
- Previous product launch: May 2, 2026
- Previous kit price: 2,800 yen including tax
- Previous experience tools: physical kit, smartphone, and LINE
- Related manga: PARANORMASIGHT FILE25: Reikan Shojo Kurosuzu Miwo no Kaiko
- Manga setting: northern Tokyo, including Kita and Adachi
- Manga story writer: Takaya Ishiyama
- Manga illustrator: Hinase Momoyama
- Manga upper volume: February 6, 2026
- Manga lower volume: August 6, 2026
- Related event: Adachihime Festival 2026
- New kit price: not yet confirmed
- New experience duration: not yet verified
- Availability end date: not yet confirmed
- New digital game or DLC: not announced as part of this reveal
PARANORMASIGHT Alt FILE 25 Visual and Announcement
PARANORMASIGHT Alt FILE 25 Goes on Sale December 5
On November 12, 2026, Square Enix confirmed through the official PARANORMASIGHT X account that Alt FILE 25: Adachihime to Senju Nyanya Fushigi will go on sale on December 5, 2026. The product is a mystery-solving kit designed around visiting actual locations rather than a newly announced digital game.
It marks the second PARANORMASIGHT collaboration with Catrip. The previous experience, Alt FILE 23 Honjo Nyanya Fushigi, launched on May 2, 2026, taking participants through the Kinshicho and Ryogoku areas of Sumida.
This time, the experience moves to Senju, a northern Tokyo district associated with local history and traditional folklore. Participants will travel between temples, shrines, and historical sites while uncovering the mysteries featured in the new activity.
The initial announcement also revealed promotional artwork showing several PARANORMASIGHT characters against a nighttime street and illuminated bridge. While the sales date is confirmed, the price, complete list of retailers, and expected completion time of the new experience have not yet been sufficiently detailed.
The Legend of Princess Adachi Inspires the New Mystery
The central theme of Alt FILE 25 comes from the legend of Princess Adachi, a traditional story associated with the area for approximately 1,300 years, according to related promotional material.
The new experience invites participants to explore places connected with that folklore. Rather than simply reading historical information on a screen, players will visit real locations and follow clues along their journey to solve a series of puzzles.
This approach follows the established identity of PARANORMASIGHT, a supernatural mystery franchise inspired by historical sites, local legends, and urban folklore. Its first game, PARANORMASIGHT FILE23: The Seven Mysteries of Honjo, drew from the famous Seven Mysteries of Honjo associated with Sumida.
By using the Princess Adachi legend, the new Senju experience connects players with northern Tokyo's local heritage through an investigative activity. However, the complete story, full character lineup, and solutions to its mysteries have not been revealed in the initial announcement.
Catrip Turns Urban Exploration into a Mystery Experience
Catrip is Square Enix's series of immersive mystery-walking experiences, combining sightseeing, on-foot exploration, and puzzle solving. Participants follow a narrative while moving between real locations, making the surrounding city an active part of the game.
In the previous PARANORMASIGHT experience in Sumida, players used a physical kit and a smartphone running LINE to examine clues, interact with characters, and unlock further story developments. That project was produced with puzzle development group Yodaka no Record, alongside support from JR East and local partners.
The earlier product cost 2,800 yen including tax and had an estimated completion time of four to five hours. However, those details specifically applied to Alt FILE 23 in Sumida. There is no confirmed basis for assuming that the Senju kit uses the same pricing, duration, or complete set of digital features.
By moving the activity to Senju, the latest collaboration expands PARANORMASIGHT's mystery experiences into another neighborhood. Participants are not merely traveling between puzzle locations, but also exploring the folklore and historical surroundings that inspired the experience.
Senju Connects with the PARANORMASIGHT FILE25 Manga
The selection of Senju has an interesting connection to the official manga PARANORMASIGHT FILE25: Reikan Shojo Kurosuzu Miwo no Kaiko, a spin-off story set after the franchise's first game.
The manga takes place in northern Tokyo, including the Kita and Adachi districts, following the events of The Seven Mysteries of Honjo. It follows a schoolgirl caught up in supernatural disturbances who meets a spiritually gifted girl, with the two investigating mysteries connected to local legends.
The manga's story was written by Takaya Ishiyama, illustrated by Hinase Momoyama, with original character designs by Gen Kobayashi. It was released in two books: the upper volume on February 6, 2026, and the concluding lower volume on August 6, 2026.
Alongside the Catrip kit announcement, information was also revealed about Adachihime Festival 2026, which features separate collaboration activities involving the FILE25 manga. These include displays and sales of traditional craft items and a special train experience. However, the festival programs and the Catrip mystery kit should be treated as distinct activities; benefits or services associated with one are not automatically included in the other.
Why This Matters
1) PARANORMASIGHT returns to real-world mystery solving
The second collaboration with Catrip extends the franchise's supernatural investigations beyond digital screens. Players use the Senju environment itself as their place of investigation rather than viewing it only as a fictional background.
2) Local folklore becomes part of a sightseeing experience
The centuries-old Princess Adachi legend provides the foundation for the latest puzzles. By combining local history with interactive investigation, the project incorporates cultural exploration directly into its gameplay.
3) The setting connects with the FILE25 manga universe
Northern Tokyo has already become part of PARANORMASIGHT's extended narrative through the official spin-off manga. Visiting Senju creates a thematic connection between real locations, local folklore, and the franchise's expansion beyond its main games.
PARANORMASIGHT Alt FILE 25: Adachihime to Senju Nyanya Fushigi Information
For now, the additional important information currently known includes:
- the original announcement was shared through the official @PARANORMA_PR X account
- the product is a collaboration mystery kit between PARANORMASIGHT and Catrip
- sales are scheduled to begin Saturday, December 5, 2026
- participants must visit Tokyo's Senju district to experience the real-world activity
- announced location types include temples, shrines, and historical landmarks
- the Princess Adachi legend is one of the central story themes
- this is not an announcement of another mainline PARANORMASIGHT video game
- the previous Catrip experience involved a physical kit and LINE
- app requirements, purchasing procedures, and the new Senju experience's duration require separate confirmation
- the 2,800-yen price belongs to the earlier Sumida product, not a confirmed Alt FILE 25 price
- the PARANORMASIGHT FILE25 manga concluded in two volumes
- Adachihime Festival 2026 also begins in December with separate manga collaboration activities
- an end date for the new kit's availability has not yet been confirmed
- language support beyond Japanese and potential international sales have not been reliably announced
- no official non-live promotional trailer specifically introducing the new kit has been found
- the latest announcement is available through Official PARANORMASIGHT X Announcement
- information about the mystery-walking series is available through Official Catrip Website
- folklore and related event information is available through Official Adachihime Festival Website
- details about the earlier Catrip experience are available through Official Catrip Collaboration Development Announcement
- the original game is documented through Official PARANORMASIGHT Website
- information about the Adachi-related manga is available through Official PARANORMASIGHT FILE25 Manga Page
- the manga's first book is documented through Official PARANORMASIGHT FILE25 Upper Volume Page
Closing
PARANORMASIGHT Alt FILE 25: Adachihime to Senju Nyanya Fushigi will go on sale December 5, 2026, bringing another interactive mystery-walking experience to Catrip. Participants will explore Senju while investigating puzzles inspired by the Princess Adachi legend, connecting PARANORMASIGHT's supernatural themes with real historical locations in Tokyo.
The second collaboration expands the concept introduced in Sumida, moving it into a district that also connects with the FILE25 manga setting. While the sales date is confirmed, the new kit's price, completion time, purchasing details, and full participation requirements still await further official clarification.
- PARANORMASIGHT Official X — December 5, 2026 Release Announcement for the Second Catrip Collaboration Mystery-Walking Kit in Senju
- Square Enix Catrip — Official Immersive Mystery-Walking Series and PARANORMASIGHT Collaboration Information
- Adachihime Festival — Official Princess Adachi Folklore Exhibition and Senju Area Event Information
- Kirifuda — Official Development Announcement for the Previous PARANORMASIGHT Catrip Experience, Gameplay System, Price, and Location
- Square Enix — Official PARANORMASIGHT FILE23 Original Game, Setting, and Franchise Information
- Square Enix Manga — Official PARANORMASIGHT FILE25 Lower Volume, Original Creators, Story Setting, and Publication Information
- Square Enix Manga — Official PARANORMASIGHT FILE25 Upper Volume Release Date, Creators, Price, and Original Story Synopsis
