Hidden Bathroom Secret: Difference between revisions

Sohei Dejima
	Victim (poison); 54 years old; Design office president; Atsushi Miyano's childhood friend;

Atsushi Miyano
	Ai Haibara's father;

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Latest revision as of 13:56, 1 August 2026

Chronology

‹ The Four Porsches

List of Episodes

List of Manga Cases

The Bride of Huis ten Bosch ›

Hidden Bathroom Secret (トイレに隠した秘密 ,Toire ni Kakushita Himitsu^?) is the 340th and 341st episode of Detective Conan anime.

Cast

Introduced

Featured

Characters

Akemi Miyano (flashback)

Yukiko Kudo (flashback)

Elena Miyano (flashback)

Officer Tome

Unnamed officer (flashback)

Gadgets

Voice-Changing Bowtie

Case

Situation

Part 1

This episode reveals bits and pieces of Haibara's family. Haibara knows very little about her parents, and considers her mother a cold and mysterious woman, nicknamed "Hell Angel" by the Black Organization. Professor Agasa then brought Conan and her to the house of her father's old friend in Kōenji, who is professor Miyano's friend. Haibara takes an interest in seeing the house, where her father grew up. They learn that Professor Miyano once came here with his wife Elena and their daughter Akemi. Professor Miyano wanted to discuss something with Dejima, but he wasn't home. The family waited for a while, but left. Later, after leaving the bathroom, professor Dejima is murdered, leading Haibara to believe the Black Organization is behind it.

Murder

Location: Atsushi Miyano's former house

Victim: Sohei Dejima

Age: 54 years old

Cause of death: Potassium cyanide poisoning

Suspects: Ukihiko Zaitsu, Tetsuo Imai, and Isamu Natsubori

Part 2

People

Ukihiko Zaitsu
	41 years old Designer

Tetsuo Imai
	52 years old Designer

Isamu Natsubori
	35 years old Designer

Resolution

Show spoilers »

The culprit is Tetsuo Imai. Sohei Dejima as suspected was poisoned in design office's bathroom. The poison was lathered onto an empty toilet paper roll that the president touched by changing it with a new one. The poison found in his hamburger and hands were merely trace markings. To guarantee the president went to the bathroom when his trap was set, Imai served Dejima's morning coffee with laxatives.

When it was brought up that Zaitsu could be poisoned as he used the restroom last, it is reasoned that Imai knew his colleague would only urinate as there was hardly a sound of water being flushed (there was a water shortage in the building due to supposed tampering from the Black Organization) and the fact that he noticed him drinking a lot. The bag used to contain the poison was retrieved from the dirtiest part of the building's sink.

Imai confesses saying that twenty years ago he desired to work independently from Dejima and start afresh in a new company. Dejima colluded with his rival design companies to deny helping him achieve his dream, causing him to plan to murder his boss. Only the presence of the young Akemi Miyano, who Imai saw as his conscience, stopped him once she saw him seriously looking at the sink. He told her that he was just tired, and Akemi believed it.

Her pranks to hide design objects in the house was to give Imai rest. However, his vengeance resurfaced again when he decided to become independent, but was told by Dejima that "it wouldn't have worked out, unless it was him from 20 years ago". Akemi's short visit, as well as her promise to return with Shiho, would've sooth him of his revenge. Tragically, Imai went through with his vengeance as Akemi never returned, due to her untimely demise at the hands of Gin.

Conan retrieves the secret that Akemi hid in the bathroom. It turned out to be a set of cassette tapes, recorded by Akemi and Haibara's deceased mother Elena, for Haibara's birthday every year right up till the year she turns 20. The episode ended with Conan saying that Elena Miyano was a true angel.

Manga to anime changes

Main article: List of differences between the manga and anime

Atsushi Miyano wasn't shown in any flashback in the original manga version, where his true appearance remains unknown until file 1011.
There is a scene where Haibara visualise a shadow figure who ressembles Dr. Araide turning into Vermouth. While in the manga there is only a panel of her thinking about Vermouth.

Remastered version

On May 25 and on June 1, 2013, a remastered version of the case was aired.

Trivia

When Haibara had that memory of Conan giving her his glasses in order to disguise herself, it was in reference to Reunion with the Black Organization, although the deceased Pisco did recognize her anyway.
The bus backflash was from The Mysterious Passenger.
When Ran was making egg porridge for Haibara, and admitted, "It isn't as good as Tarugatei's though", she is referring to the famous restaurant in the Department store in The Four Porsches, where Conan and Agasa were in line, but after a TV reporter interviewed Conan on LIVE TV, they had to quickly leave, before ordering any for them or for Haibara, which was the goal.

Gallery

For the full gallery, click here:

BGM listing

Part 1

#	Song Title	Romaji	Translation	OST
1	君と約束した優しいあの場所まで	Kimi to Yakusoku Shita Yasashii Ano Basho Made	Until I Get You Gently to That Promised Place	Kimi to Yakusoku Shita Yasashii Ano Basho Made
2	夜の探索	Yoru no Tansaku	Night Search	Detective Conan Original Soundtrack 4 ~Isoge! Shōnen Tanteidan~
3	オセンチな歩美（未収録ヴァージョン）	Osenchina Ayumi (Mi Shūroku Vājon)	Sentimental Ayumi (Unreleased Version)
4	蘭のテーマ（涙ver.）	Ran no Tēma (Namida ver.)	Ran's Theme (Tearful ver.)	Detective Conan Original Soundtrack 2
5	過去のあやまち	Kako no Ayamachi	Error of the Past	Detective Conan Original Soundtrack 4 ~Isoge! Shōnen Tanteidan~
6	蘭・愛のテーマ（ギターver.）	Ran・Ai no Tēma (Gitā ver.)	Ran's Love Theme (Guitar ver.)	Detective Conan Original Soundtrack 2
7	コナンの勝利（夜空ver.）	Konan no Shōri (Yozora ver.)	Conan's Victory (Night Sky ver.)	Detective Conan Original Soundtrack 2
8	夜の探索	Yoru no Tansaku	Night Search	Detective Conan Original Soundtrack 4 ~Isoge! Shōnen Tanteidan~
9	夜の探索	Yoru no Tansaku	Night Search	Detective Conan Original Soundtrack 4 ~Isoge! Shōnen Tanteidan~
10	暗殺者のテーマ─忍び寄る魔手	Ansatsusha no Tēma - Shinobiyoru Mashu	Assassin's Theme - The Devil's Hand Approaches	Detective Conan "Captured in Her Eyes" Original Soundtrack
11	映画BGM	Eiga BGM	Movie BGM	Detective Conan "Countdown to Heaven" Original Soundtrack
12	事件現場（謎ver.）	Jiken Genba (Nazo ver.)	Scene of the Case (Mystery ver.)	Detective Conan Original Soundtrack 2
13	悪のテーマ（パート２）	Aku no Tēma (Pāto 2)	Theme of Evil (Part 2)	Detective Conan Original Soundtrack 2
14	犯人のアジト（忍び込みver.）	Hannin no Ajito (Shinobikomi ver.)	The Culprit's Hideout (Creeping In ver.)	Detective Conan Original Soundtrack 2
15	推理（不気味ver.）	Suiri (Bukimi ver.)	Deduction (Ominous ver.)	Detective Conan Original Soundtrack 2
16	犯人（スナイパー）の正体	Hannin (Sunaipā) no Shōtai	The Culprit's (Sniper's) Identity	Detective Conan "Captured in Her Eyes" Original Soundtrack
17	君という光	Kimi to Iu Hikari	The Light Called "You"	Kimi to Iu Hikari

Part 2

#	Song Title	Romaji	Translation	OST
1	君と約束した優しいあの場所まで	Kimi to Yakusoku Shita Yasashii Ano Basho Made	Until I Get You Gently to That Promised Place	Kimi to Yakusoku Shita Yasashii Ano Basho Made
2	緊迫	Kinpaku	Tension	Detective Conan Original Soundtrack 2
3	暗殺者のテーマ─忍び寄る魔手	Ansatsusha no Tēma - Shinobiyoru Mashu	Assassin's Theme - The Devil's Hand Approaches	Detective Conan "Captured in Her Eyes" Original Soundtrack
4	尋問	Jinmon	Interrogation	Detective Conan "The Last Wizard of the Century" Original Soundtrack
5	「何だこの痕跡は？」（未収録ヴァージョン）	"Nanda Kono Konseki wa?" (Mi Shūroku Vājon)	"What Is This a Trace Of?" (Unreleased Version)
6	推理（オリジナルver.）	Suiri (Orijinaru ver.)	Deduction (Original ver.)	Detective Conan Original Soundtrack 2
7	映画BGM	Eiga BGM	Movie BGM	Detective Conan "Countdown to Heaven" Original Soundtrack
8	小五郎の推理	Kogorō no Suiri	Kogoro's Deduction	Detective Conan "Countdown to Heaven" Original Soundtrack
9	顛末（TENMATSU）	Tenmatsu (TENMATSU)	The Facts (TENMATSU)	Detective Conan "Captured in Her Eyes" Original Soundtrack
10	コナン推理	Konan Suiri	Conan's Deduction	Detective Conan "Countdown to Heaven" Original Soundtrack
11	トリック	Torikku	Trick	Detective Conan "The Fourteenth Target" Original Soundtrack
12	沈む夕陽	Shizumu Yūhi	Depressing Sunset	Detective Conan Original Soundtrack 1
13	漆黒の殺意	Shikkoku no Satsui	Jet Black Murderous Intent	Detective Conan "Captured in Her Eyes" Original Soundtrack
14	Need not to know.	Need not to know.	Need not to know.	Detective Conan "Captured in Her Eyes" Original Soundtrack
15	それいけコナン（哀愁ヴァージョン）	Soreike Konan (Aishū Vājon)	Let's Go Conan (Sorrow Version)	Detective Conan Original Soundtrack 1
16	古城のテーマ	Kojō no Tēma	The Old Castle's Theme	Detective Conan "The Last Wizard of the Century" Original Soundtrack
17	オセンチな歩美	Osenchi na Ayumi	Sentimental Ayumi	Detective Conan Original Soundtrack 4 ~Isoge! Shōnen Tanteidan~
18	驚愕の真実	Kyōgaku no Shinjitsu	Surprising Truth	Detective Conan "Captured in Her Eyes" Original Soundtrack
19	君という光	Kimi to Iu Hikari	The Light Called "You"	Kimi to Iu Hikari

In other languages

Language	Title	Translation
Arabic	السر المخبأ في الحمام	The secret hidden in the bathroom
Catalan (Catalan dub)	El secret amagat al lavabo	The secret hidden in the bathroom
Catalan (Valencian dub)	El secret amagat al lavabo	The secret hidden in the bathroom
Filipino	Ang Nakatagong Lihim ng Palikuran	The Hidden Secret of the Toilet
French	Le secret caché dans les toilettes	The secret hidden in the toilet
German	Das in der Toilette versteckte Geheimnis	The secret hidden in the bathroom
Italian	Il segreto nascosto nella toilette	The secret hidden in the bathroom
Spanish (Castilian dub)	El secreto del cuarto de baño	The Secret of the Bathroom
Thai	ความลับที่ซ่อนในห้องสุขา	The Secret Hidden in the Bathroom
Vietnamese	Bí mật trong nhà vệ sinh	The Secret in the Bathroom

v • d • e Season 8 (2003)
#304: *The Trembling Police Headquarters: 12 Million Hostages* #305: The Unseen Suspect (Part 1) #306: The Unseen Suspect (Part 2) #307: On the Trail of a Silent Witness (Part 1) #308: On the Trail of a Silent Witness (Part 2) #309: Contact with the Black Organization (The Negotiation) #310: Contact with the Black Organization (The Pursuit) #311: Contact with the Black Organization (Desperation) #312: Festival Dolls Dyed in the Setting Sun (Part 1) #313: Festival Dolls Dyed in the Setting Sun (Part 2) #314: The Scenic Lookout with the Broken Fence #315: Place Exposed to the Sun #316: The Sullied Masked Hero (Part 1) #317: The Sullied Masked Hero (Part 2) #318: The Lucky Cigar Case (Part 1) #319: The Lucky Cigar Case (Part 2) #320: The Art of Ninja Alibi Craft #321: The Kidnapper's Disappearing Getaway Car (Part 1) #322: The Kidnapper's Disappearing Getaway Car (Part 2) #323: Heiji Hattori's Desperate Situation! (Part 1) #324: Heiji Hattori's Desperate Situation! (Part 2) #325: The Red Horse within the Flames (The Case) #326: The Red Horse within the Flames (The Investigation) #327: The Red Horse within the Flames (The Resolution) #328: The Birthday Wine Mystery #329: A Friendship That Can't Be Bought (Part 1) #330: A Friendship That Can't Be Bought (Part 2) #331: The Suspicious Spicy Curry (Part 1) #332: The Suspicious Spicy Curry (Part 2) #333: The Similar Princesses (Part 1) #334: The Similar Princesses (Part 2) #335: Secret of the Tohto Film Development Studio (Part 1) #336: Secret of the Tohto Film Development Studio (Part 2) #337: Hidden Circumstances of the Falling Incident #338: The Four Porsches (Part 1) #339: The Four Porsches (Part 2) #340: Hidden Bathroom Secret (Part 1) #341: Hidden Bathroom Secret (Part 2) #342: *The Bride of Huis ten Bosch* #343: The Convenience Store Trap (Part 1) #344: The Convenience Store Trap (Part 2)
Bold = Anime Special Yellow background = TV Original
« Season 7	List of episodes	Season 9 »

v • d • e Black Organization
High ranking	The Boss • Rum • Gin • Vermouth
Other agents	Vodka • Kir (undercover) • Chianti • Korn • Bourbon (undercover)
Deceased agents	Akemi Miyano • Tequila • Kenzo Masuyama / Pisco • Calvados • Rikumichi Kusuda • Ethan Hondou (undercover) • Hiromitsu Morofushi / Scotch (undercover)
Former agents	Shiho Miyano / Sherry (Ai Haibara) • Shuichi Akai / Dai Moroboshi / Rye (undercover) • Ki'ichiro Numabuchi
Extended canon	Movies	Yoshiaki Hara • Irish • Masaaki Okakura • Curaçao • Stout • Aquavit • Leona Bucholz / Riesling • Pinga
	TV Specials	Man in bar
	Special Manga	Arrack • Generic • Blackbeard
	Games	Kate Lauren
Related articles	Black Organization timeline • APTX 4869 • Nanatsu no Ko • Scar Akai • List of Black Organization related characters • Vermouth timeline • Suguru Itakura • Kohji Haneda case • Karasuma Group • "The Criminal" • Night Baron • Crow • Akai's fake death technique
Manga	Roller Coaster Murder Case • ¥1,000,000,000 Robbery • Bullet-Train Bombing • Game Convention Case • Missing Older Brother Case • Murdered Professor Case • Hotel Party Murder Case • Bus Hijacking Case • Kaitou Kid and the Murder • Escalator Message Case • Golden Apple Case • Footsteps of Darkness • Meeting with Vodka • Four Porsches Case • Bathroom Murder Case • Halloween Party Case • Black Organization vs. FBI • Mysterious Job Case • Kir Transport Case • Foreign Suspect Case • Department Store Bomber Case • Online Client • Mystery Train • Tennis Meetup • A Shrine to Remember • Elementary Teacher Assault • Scarlet Showdown • Girls Band Murder Case • Soul Detective Murder Case • A song named ASACA • Missing Maria Higashio Case • Sisters' Birthday Party Murder Case • Yusaku Kudo's TV Show Case • FBI Serial Murder Case • Akemi Miyano's Time Capsule • Chess Tournament Murder Case • Video Gamer Locked Room Murder Case
Anime	Roller Coaster Murder Case • Game Company Murder Case • The Black Organization: One Billion Yen Robbery Case • The Girl from the Black Organization and the University Professor Murder Case • Reunion with the Black Organization • The Gathering of the Detectives! Shinichi Kudo vs. Kaitou Kid • The Mysterious Passenger • The Secret Rushed Omission • Shinichi Kudo's New York Case • On the Trail of a Silent Witness • Contact with the Black Organization • The Four Porsches • Hidden Bathroom Secret • Head-to-Head Match with the Black Organization: A Dual Mystery on a Full Moon Night • Black Impact! The Moment the Black Organization Reaches Out • The Shadow of the Black Organization • Clash of Red and Black • The Crisis Beckoned by the Red Omen • Detectives' Nocturne • The Jet-Black Mystery Train • Conan in a Locked Room • Jodie's Memories and the Cherry Blossom Viewing Trap • The Scarlet Return • The Shadow Approaching Amuro (TV original) • The Unfriendly Girls Band • The Spirit Detective's Murder • The Betrayal's Stage • Search for Maria-chan! • The Birthday Party of Divine Punishment • Yusaku Kudo's Detective Show • The Black Organization's Scheme • Akemi Miyano's Time Capsule • The 17-Year-Old Truth
Movies	Countdown to Heaven • The Raven Chaser • The Darkest Nightmare • Black Iron Submarine
TV Specials	Time Travel of the Silver Sky • Black History • Shinichi Kudo Returns! Confrontation with the Black Organization
Special Manga	The Wish Put on the Airship • The Black Organization...Revealed • Protect the Luxury Liner from the Virus
Spin-offs	Chianti's Last Supper
Games	Detective Conan: The Great Deduction of Three People (Remembrance Treasure Case)

@@ Line 4: / Line 4: @@
 | image               = TV Episode 340-341.jpg
 | title               = Hidden Bathroom Secret
-| english-title       =
+| english-title       = The Secret Hidden in the Bathroom
 | japanese-title      = {{lang|ja|トイレに隠した秘密}} <br> (Toire ni Kakushita Himitsu)
 | rating              = 12.1% <br> 13.1%
@@ Line 12: / Line 12: @@
 | manga               = [[Volume 41#Bathroom Murder Case|Volume 41: File 10 (423)]] ~ <br> [[Volume 42#Bathroom Murder Case|Volume 42: File 1 (425)]]
 | airdate             = November 3, 2003 (Part 1) <br> November 10, 2003 (Part 2) <br> May 25, 2013 (Part 1) '''(Remastered version)''' <br> June 1, 2013 (Part 2) '''(Remastered version)'''
-| english-airdate     =
+| english-airdate     = {{Inline icons|Studio Nano}} August 1, 2026
 | cast                = [[Conan Edogawa]] <br> [[Ai Haibara]] <br> [[Hiroshi Agasa]] <br> [[Ran Mouri]] <br> [[Juzo Megure]] <br> [[Wataru Takagi]] <br> [[Vermouth]] <br> [[Akemi Miyano]] <br> [[Yukiko Kudo]] <br> [[Elena Miyano]] <br> [[Officer Tome]]
 | suspects            = Ukihiko Zaitsu, Tetsuo Imai, and Isamu Natsubori
@@ Line 33: / Line 33: @@
 {{nihongo|'''''{{PAGENAME}}'''''|トイレに隠した秘密|Toire ni Kakushita Himitsu}} is the 340th and 341st episode of ''[[Detective Conan]]'' [[anime]].
-== Characters introduced ==
+== Cast ==
+=== Introduced ===
 {{NewChar|name = [[Atsushi Miyano]]|image = Atsushi Miyano.jpg|description =
 * Ai Haibara's father}}
 {{clearleft}}
-== Cast ==
+=== Featured ===
 {{Char Appearances|
 {{char|Conan Edogawa}}

Latest revision as of 13:56, 1 August 2026

Cast

Introduced

Featured

Gadgets

Case

Situation

Part 1

Part 2

People

Resolution

Manga to anime changes

Remastered version

Trivia

Gallery

BGM listing

Part 1

Part 2

In other languages

See also