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The Spiral Mansion Mystery

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Chronology
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Episode 1195-1196
(Int. Episode 1254-1255)

Information
Title: The Spiral Mansion Mystery
Japanese title: 館ミステリー 渦巻館
(Yakata Misuterī Uzumaki-kan)
Original airdate: March 28, 2026 (Part 1)
April 4, 2026 (Part 2)
Broadcast rating: 4.9% (Part 1)
6.0% (Part 2)
Filler case: #458
Season: 31
Manga source: TV Original
Case
Cast: Conan Edogawa
Ran Mouri
Kogoro Mouri
Juzo Megure
Wataru Takagi
Yoko Okino
Case solved by: Kogoro Mouri (via Conan)
Next Conan's Hint: Drill (Part 1)
Rope (Part 2)
Staff
Director: Yasuichiro Yamamoto
Nobuharu Kamanaka
Screenplay: Hiro Masaki
Storyboard: Masaki Ozora
Episode director: 1195: Yuki Kawakata
1196:
Yoshihiro Sugai
Tsukasa Saito (asst.)
Animation director: 1195:
Kaoru Nagakawa
Michitaka Yamamoto
Yukari Kamiaka
Zi Dengjia
Marie Nagano
Kana Aoki
Asuka Tsubuki
1196:
Kosei Takahashi
Eiichi Tokura
Character design: Masatomo Sudo
Masanori Hashimoto (sub-character)
Hiroshi Ogawa (design works)
Production cooperation: 1195: Azeta Pictures
1196: Mouse
Voice Cast:

Minami Takayama as Conan Edogawa
Akemi Okamura as Ran Mouri
Rikiya Koyama as Kogoro Mouri
Chafurin as Juzo Megure
Wataru Takagi as Wataru Takagi
Yoshimitsu Shimoyama as Sensuke Tsurufuji
Taro Kiuchi as Satoshi Omagari
Akeno Watanabe as Yoko Tsurufuji
Mie Sonozaki as Maimai Tsurufuji
Azusa Tadokoro as Kaoru Neji
Junya Enoki as Kazumi Hayase

Music
Opening song: Heaven Knows
Closing song: TOWA ~Towa ni Kaze ni Noru~

The Spiral Mansion Mystery (館ミステリー 渦巻館 Yakata Misuterī Uzumaki-kan?) is the 1195th and 1196th episode of the Detective Conan anime.

Cast

Gadgets

Case

Situation

Part 1

Yoko Okino covered the Spiral Mansion on TV several days ago, which got Kogoro hyped up and now he has taken his family into the Mansion to witness the spiral arts.

The Tower of Babel
The Abyss

Kogoro, Ran, and Conan continue their visit with the Spiral Mansion curator Kaoru Neji before the art magazine editor Kazumi Hayase arrives to have a meeting with her and several other members of the Tsurufuji family includes: Kyu's son Sensuke Tsurufuji, Sensuke's younger sister Maimai Tsurufuji, and Sensuke’s wife Yoko Tsurufuji. The meeting was meant to seal the deal about the publication of Kyu's arts, but it did not work out due to the publication fee being 300.000 yen, despite his contribution to conceptual art.

Meanwhile, the Mouris are still enjoying their visit at the mansion when they hear a scream that is followed by a gunshot. Kogoro tells Ran and Conan not to follow him, only for him to realize they did the opposite when he discovered the body of Sensuke. Still, he asks his daughter to call the police.

Murder
Location: Bathroom in the Spiral Mansion 3rd floor
Victim: Sensuke Tsurufuji
Age: 41 years old
Cause of death: Gunshot wound to chest
Suspects: Kaoru Neji, Kazumi Hayase, Maimai Tsurufuji, Yoko Tsurufuji

Later, we can see that Conan is checking the mansion guidebook for navigation. Then, he tries to count how many footsteps he needs to walk from one floor to another. He notices that the distance between the 3rd floor and the 4rd floor is 50% longer than the others, from which he deduces that there must be a half-floor space in between the two floors.

The board at the top of the spiral stairs

Conan then asks Sensuke’s wife for permission to check the building’s blueprint, to which she suggests he ask Neji instead. However, he finds nothing from the blueprint given by the curator, so he observes somewhere else. Only after Conan reads the dialogue at the top of the spiral stairs again and sees both the Abyss and the tower of Babel does he realize that he should use the latter to put in the former.

Conan asks Neji if they can put the Abyss like that, Neji hesitates but Maimai sympathizes with his curiosity, mentioning that she did want to do so when she was young. As she put the tower of Babel down to the Abyss, it makes a sound of an ancient mechanism as the floor Conan, Ran, Neji and Maimai are standing is gradually lowering.

The secret of the Spiral Mansion

As the sound of the ancient mechanism ends, Kogoro arrives with Takagi and Megure, asking what the sound was. Conan leads everyone to the secret room of the building. However, Megure perceives this discovery to be not useful, while Kogoro wonders the whereabouts of Satoshi. Feeling that something is off with how long he has been gone and how Maimai explains about her husband's walking habit, Megure orders Takagi to find Satoshi.

Murder
Location: A stream near the Spiral Mansion
Victim: Satoshi Omagari
Age: 39 years old
Time: 1:15 PM
Cause of death: Cerebral contusion from a blow to the back of the head
Suspects: Kaoru Neji, Kazumi Hayase, Maimai Tsurufuji, and Yoko Tsurufuji

Part 2

People

  • Resolution

    Trivia

    • The suspects have names related to "spirals/turning":
      • Sensuke Tsurufuji (弦藤 旋介)'s first name contains the kanji "旋" in "rotation" (旋回 senkai?) ;
      • Maimai Tsurufuji (弦藤 舞々)'s first name contains the kanji "舞" in "to rotate"/"to spin" (舞う mau?) ;
      • Kaoru Neji (根次 薫)'s last name is similar to "screw"/coil" (螺子 neji?) ;
      • Satoshi Omagari (大曲 悟志)'s last name contains the kanji for "twist"/"turn" ( magari?).


    In other languages

    Language Title Translation
    Flag of France French (Subbed) Mystère au manoir : Le Musée du tourbillon Mystery at the mansion: The spiral museum
    Flag of Germany German (Subbed) Mysterium im Museum: Die Spiralen-Villa Mystery at the Museum: The Spiral Villa
    Flag of South Korea Korean 소용돌이 저택 미스터리 The Spiral Mansion Mystery

    References

    See also

    Episodes of Season 31
    Episode 11871188118911901191119211931194119511961197119811991200120112021203