The Silent Loop Line

Chronology
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Episode 158 (Int. Episode 168)
Information
Title:	The Silent Loop Line
Japanese title:	沈黙の環状線 (Chinmoku no Kanjō-sen)
Original airdate:	August 23, 1999 August 8, 2020 (Remastered)
Broadcast rating:	17.8%
Remastered rating:	8.1%
Filler case:	#58
Season:	4
Manga source:	TV Original
Case
Cast:	Conan Edogawa Ran Mouri Kogoro Mouri Juzo Megure Wataru Takagi
Case solved by:	Kogoro Mouri (via Conan)
Next Conan's Hint:	Pink ballpoint pen MD player (Remastered version)
Staff
Director:	Yasuichiro Yamamoto Kenji Kodama (chief)
Screenplay:	Takeshi Mochizuki
Storyboard:	Takashi Iwama
Episode director:	Nana Harada
Animation director:	Atsushi Aono
Character design:	Masatomo Sudo Yasuhiro Moriki (design works)
Voice Cast: Minami Takayama as Conan Edogawa Wakana Yamazaki as Ran Mouri Akira Kamiya as Kogoro Mouri Chafurin as Juzo Megure Wataru Takagi as Wataru Takagi, Next Conan's Hint Akira Kanou as Seiji Kurata Yuriko Yamaguchi as Shizuka Kawai Isshin Chiba as Announcement Akiko Yajima as Yukiko Mori
Music
Opening song:	Girigiri chop
Closing song:	Free Magic

The Silent Loop Line (沈黙の環状線 ,Chinmoku no Kanjō-sen) is the 158th episode of Detective Conan anime.

Cast

Characters
Conan Edogawa Ran Mouri Kogoro Mouri Juzo Megure Wataru Takagi

Gadgets

Gadgets
Voice-Changing Bowtie Stun-Gun Wristwatch

Case

Situation

Kogoro, Ran, and Conan are waiting for the train when they notice a group of people leaving work on a Sunday. Once they boarded the train, the group finds their co-worker dead in an empty train car.

Murder
	Location: Train (JR Yamanote Line) car 2 Victim: Kiyomi Hashimoto Cause of death: Blowdart poisoning Suspects: Seiji Kurata, Shizuka Kawai, and Yukiko Mori Seiji found Kiyomi in train seat, but when he touched her to wake her up, the body fell onto the train floor dead.

After all three are presented as possible suspects Conan notices a couple of clues, there is a mark on her ear and a line on her arm.

People

Seiji Kurata
	26 years old Advertisement design company worker

Shizuka Kawai
	24 years old Advertisement design company worker

Yukiko Mori
	20 years old Advertisement design company worker

Kiyomi Hashimoto
	Victim (poison) Advertisement design company worker

Resolution

  Show spoilers »

The culprit is Yukiko Mori. First, she knew Kiyomi was leaving first, saw her off at the station, and established what time she boarded the train. She timed how long it would take for the body to loop back around to the station and return.

The murder weapon is the headphones, before giving them to Kiyomi she had rigged them with a small needle coated with poison. So that when Kiyomi put on the headphones the needle would prick her ear introducing the poisoning and thus killing her.

When they boarded the train, Yukiko took too long to retrieve the headphones as they were stuck because Kiyomi was in rigor she yanked them so hard that they snapped. When Yukiko opens the CD player, she finds a thank you message wrritten by Kiyomi on the CD, Conan had noticed that on the one of CD label was pink ink that had been cut off. She breaks down, confesses and reveals that she became enraged after Kiyomi stole her boyfriend.

Trivia

• According to the mini disc label, this episode's plot takes place August 22, 1999.
• The songs Yukiko has on her CDs are from Yoko Okino, Miho Komatsu, and TWO-MIX.
• The use of MD Players would have been abnormal if the timeline of Detective Conan took place in the late 2010s or 2020s, since Sony has ceased development of MD devices, with the last of the players sold by March 2013.

BGM listing

#	Song Title	Romaji	Translation	OST
1	ギリギリchop	Girigiri chop	On the edge chop	Girigiri chop
2	毛利小五郎のテーマ	Mōri Kogorō no Tēma	Kogoro Mouri's Theme	Detective Conan Original Soundtrack 1
3	新一の名推理	Shin'ichi no Meisuiri	Shinichi's Great Deduction	Detective Conan Original Soundtrack 3
4	事件現場 （謎ver.）	Jiken Genba (Nazo ver.)	Scene of the Case (Mystery ver.)	Detective Conan Original Soundtrack 2
5	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
6	推理 （不気味ver.）	Suiri (Bukimi ver.)	Deduction (Ominous ver.)	Detective Conan Original Soundtrack 2
7	犯人からの電話	Hannin Kara no Denwa	Phone Call From the Culprit	Detective Conan "The Time-Bombed Skyscraper" Original Soundtrack
8	事件現場 （オリジナルver.）	Jiken Genba (Orijinaru ver.)	Scene of the Case (Original ver.)	Detective Conan Original Soundtrack 2
9	悪のテーマ （パート２）	Aku no Tēma (Pāto 2)	Theme of Evil (Part 2)	Detective Conan Original Soundtrack 2
10	忍び寄る危機	Shinobiyoru Kiki	Incoming Crisis	Detective Conan "The Time-Bombed Skyscraper" Original Soundtrack
11	西の名探偵 （摩天楼ヴァージョン）	Nishi no Meitantei (Mantenrō Vājon)	The Great Detective of the West (Skyscraper Version)	Detective Conan "The Time-Bombed Skyscraper" Original Soundtrack
12	悲劇のヒロイン	Higeki no Hiroin	Tragic Heroine	Detective Conan Original Soundtrack 3
13	Free Magic	Free Magic	Free Magic	Free Magic
14	蘭のテーマ	Ran no Tēma	Ran's Theme	Detective Conan Original Soundtrack 1

In other languages

Language	Title	Translation
Arabic	الفتاة الصامتة	The Silent Girl
Catalan (Catalan dub)	La línia circular del silenci	The silent loop line
Catalan (Valencian dub)	La línia de metro circular del silenci	The silent loop subway line
French	La Ligne sans fin	The Line Without a End
Galician	A liña circular do silencio	The silent loop line
German	Stille auf der Ringlinie	Silence on the Loop Line
Italian	Delitto in metropolitana	Crime in the Subway
Spanish (American dub)	El circuito ferroviario del silencio	The silent railway circuit
Spanish (Castilian dub)	La línea circular del silencio	The silent loop line
Thai	ขบวนรถไฟที่เงียบสงัด	The silent train
Vietnamese	Tuyến đường Kanjo lặng thinh	The Silent Kanjo Loop Line

See also

• Season 4