Solving Mysteries in a Locked Room

| Chronology | | |
| --- | --- | --- |
| ‹  [The Real Culprit's Scream](/wiki/The_Real_Culprit%27s_Scream "The Real Culprit's Scream") | [**List of Episodes**](/wiki/Anime#Episodes "Anime") | [Lawyer Kisaki's SOS](/wiki/Lawyer_Kisaki%27s_SOS "Lawyer Kisaki's SOS")  › |
|  |  |
| --- | --- |
| **Episode 900   (Int. Episode 955)** | |
|  | |
| **Information** | |
| Title: | Solving Mysteries in a Locked Room |
| Japanese title: | 密室の謎解きショウ   (Misshitsu no nazotoki shō) |
| Original airdate: | May 5, 2018   July 12, 2025 **(Remastered version)**[](#cite_note-fremr-1) |
| Broadcast rating: | 6.9% |
| Remastered rating: | 5.0% |
| Filler case: | #292 |
| Season: | (/wiki/Season_23 "Season 23") |
| Manga source: | **TV Original** |
| **Case** | |
| Cast: | [Conan Edogawa](/wiki/Conan_Edogawa "Conan Edogawa")   [Kogoro Mouri](/wiki/Kogoro_Mouri "Kogoro Mouri")   [Juzo Megure](/wiki/Juzo_Megure "Juzo Megure")   [Wataru Takagi](/wiki/Wataru_Takagi "Wataru Takagi") |
| Case solved by: | [Kogoro Mouri](/wiki/Kogoro_Mouri "Kogoro Mouri") (via [Conan](/wiki/Conan_Edogawa "Conan Edogawa")) |
| Next Conan's Hint: | Ballpoint pen   Dynamite (**Remastered version**) |
| **Staff** | |
| Director: | [Yasuichiro Yamamoto](/wiki/Yasuichiro_Yamamoto "Yasuichiro Yamamoto") |
| Screenplay: | [Nobuo Ogizawa](/wiki/Nobuo_Ogizawa "Nobuo Ogizawa") |
| Storyboard: | [Mitsuko Kase](/wiki/Mitsuko_Kase "Mitsuko Kase") |
| Episode director: | [Minoru Tozawa](/wiki/Minoru_Tozawa "Minoru Tozawa") |
| Animation director: | [Seiji Muta](/wiki/Seiji_Muta "Seiji Muta") (supervisor)   [Keiko Sasaki](/wiki/Keiko_Sasaki "Keiko Sasaki") |
| Character design: | [Masatomo Sudo](/wiki/Masatomo_Sudo "Masatomo Sudo")   [Akio Kawamura](/wiki/Akio_Kawamura "Akio Kawamura") (sub-character)   [Kanako Ono](/wiki/Kanako_Ono "Kanako Ono") (design works) |
| | Voice Cast: | | --- | | [Minami Takayama](/wiki/Minami_Takayama "Minami Takayama") as [Conan Edogawa](/wiki/Conan_Edogawa "Conan Edogawa")   [Rikiya Koyama](/wiki/Rikiya_Koyama "Rikiya Koyama") as [Kogoro Mouri](/wiki/Kogoro_Mouri "Kogoro Mouri")   [Hidenari Ugaki](/wiki/index.php?title=Hidenari_Ugaki&action=edit&redlink=1 "Hidenari Ugaki (page does not exist)") as [Benkichi Yamanami](/wiki/Benkichi_Yamanami "Benkichi Yamanami")   [Hisao Egawa](/wiki/Hisao_Egawa "Hisao Egawa") as [Toichiro Azuma](/wiki/Toichiro_Azuma "Toichiro Azuma")   [Go Inoue](/wiki/Go_Inoue "Go Inoue") as [Haruhiko Kasai](/wiki/Haruhiko_Kasai "Haruhiko Kasai")   [Masahito Yabe](/wiki/index.php?title=Masahito_Yabe&action=edit&redlink=1 "Masahito Yabe (page does not exist)") as [Mitsuru Kitao](/wiki/Mitsuru_Kitao "Mitsuru Kitao")   [Emiri Kato](/wiki/index.php?title=Emiri_Kato&action=edit&redlink=1 "Emiri Kato (page does not exist)") as [Sueko Suematsu](/wiki/Sueko_Suematsu "Sueko Suematsu")   [Yuko Kaida](/wiki/index.php?title=Yuko_Kaida&action=edit&redlink=1 "Yuko Kaida (page does not exist)") as [Kana Tomurai](/wiki/Kana_Tomurai "Kana Tomurai") | | |
| **Music** | |
| Opening song: | [Everything OK!!](/wiki/Everything_OK!! "Everything OK!!") |
| Closing song: | [Kamikaze Express](/wiki/Kamikaze_Express "Kamikaze Express") |
***Solving Mysteries in a Locked Room*** (密室の謎解きショウ ,*Misshitsu no nazotoki shō*[?](/wiki/Help:Japanese "Help:Japanese")) is the 900th episode of the *[Detective Conan](/wiki/Detective_Conan "Detective Conan")* [anime](/wiki/Anime "Anime").
## Contents
* [1 Cast](#Cast)
* [2 Gadgets](#Gadgets)
* [3 Case](#Case)
+ [3.1 Situation](#Situation)
+ [3.2 People](#People)
+ [3.3 Resolution](#Resolution)
* [4 Trivia](#Trivia)
* [5 Gallery](#Gallery)
* [6 In other languages](#In_other_languages)
* [7 References](#References)
* [8 See also](#See_also)