The Glassy Water's Surface

Takeshi Yamaoka
	Victim (poison); 25 years old; Fisherman;

Kanta Tsuji
	25 years old; "Yamatoya" boathouse owner;

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Chronology

‹ It's a Ghost!

List of Episodes

List of Filler Cases

TBD

The Glassy Water's Surface (ガラスの水面 ,Garasu no Minamo^?) is the 1174th and 1175th episode of the Detective Conan anime. Taking place in northern Kyoto Prefecture, the story follows Conan, Ran and Kogoro visiting a client that lives in a boathouse in a small port town, at the request of lawyer Hiroki Oi. A mysterious disappearance has taken place, seemingly related to the legend of Urashima Tarō.

Cast

Characters

Case

Situation

Part 1

Lawyer Hiroki Oi receives a request from his client Kanta Tsuji to investigate the mysterious death of Takeshi Yamaoka that was said to be caused by Urashima Taro's curse two weeks ago and now he entrusts the case to the Mouri family.

Murder (past)

Location: Ine Bay between Ineura Port and Aoshima Island

Victim: Takeshi Yamaoka

Time: 2 weeks ago

Cause of death: Neurotoxin poisoning

Suspects: Kanta Tsuji, Hironobu Matsuyama, Miku Nishino, Akihide Kamikawa and Hitomi Togashi

On the way to Kyoto prefecture where the client is at, the Mouri family discusses about the plot of the fairy tale including the presence of Urashima Taro: Urashima Taro is a character who was brought down to the Dragon King's palace by the sea turtle he rescued earlier to be the main guest of the gratitude party. However, when he returns to the village, several centuries have passed, and all of his friends and family have died.

Robbery (past)

Location: Urasawa Shrine, Ine Town

Victim: Akihide Kamikawa

Time: 3 days before Takeshi's murder

Stolen items: Relics from the shrine consisting of a turtle shell and two treasure boxes

Suspects: Takeshi Yamaoka, Kanta Tsuji, Hironobu Matsuyama, Miku Nishino, Akihide Kamikawa and Hitomi Togashi

Missing person (past)

Location: Ine Bay

Victim: Kazuo Yamaoka

Time: 4 years ago

Cause of death: Missing at sea

Suspects: Miku Nishino

Murder

Location: Ineura Port

Victim: Hitomi Togashi

Cause of death: Drowning?

Suspects: Kanta Tsuji, Hironobu Matsuyama, Miku Nishino and Akihide Kamikawa

Part 2

People

Hironobu Matsuyama
	28 years old Fisherman

Miku Nishino
	26 years old Ryokan "Akatsuki" owner Kazuo's ex-wife

Akihide Kamikawa
	53 years old Urasawa shrine head priest

Hitomi Togashi
	Victim (drowned?) 24 years old "Isago-T" café manager Takeshi's ex-girlfiend

Kazuo Yamaoka
	Deceased? Missing at sea since four years ago Takeshi's older bother Miku's ex-husband

Resolution

Show spoilers »

Trivia

This is the first case to take place in Kyoto Prefecture (outside of Kyoto City).
The names of Tsuji's Ryokan and Nishino's lavish hotel-style Ryokan are taken from screenwriter Akatsuki Yamatoya's own name.
The main inspiration for the setting location is the small town of Ine, in Yosa District, Kyoto Prefecture. The boathouses shown are the world-famous "funaya" (舟屋) from the Ineura area. Other features incorporated into the episode are the streetscape of Ineura and Ine Bay.
- This is proven when when Nishino says that the town has less than 2,000 inhabitants and that it has no railway connection. This is indeed true in the case of Ine Town, although its population has fallen to around 1,800 inhabitants in its 2025 estimate^[1].
- The Urasawa Shrine (浦沢神社) is the real-life Urashima-jinja (浦嶋神社) in Ine's Honjōhama area, known for its relation to the legend of Urashima Tarō. Are shown in the episode the shrine's gate, worship hall and the Urashima Myōjin Hanging Scroll (浦嶋明神縁起絵巻), as well as the treasure box found on Takeshi Yamaoka's body, which is a real-life artifact^[2]. The name in the case is taken from Yoshio Urasawa, another screenwriter for the Detective Conan anime-original episodes and Yamatoya's mentor.
- The uninhabited island in the bay corresponds to the real-life Aoshima Island.^{[N 1]}
The song heard before finding the victims' bodies is children's song "Urashima Tarō".^[4]

Gallery

For the full gallery, click here:

In other languages

Language	Title	Translation
Arabic	اسطورة اوراشيما تارو	The Legend of Orashima Taro
French (Subbed)	L'Eau à la surface vitreuse	Water with a glassy surface
Thai	ผิวน้ำกระจกแก้ว	The Glassy Water Surface

Footnotes

[Footnote Help]

Notes

^ The location of Ineura and Aoshima is inside the larger "Kameshima" (亀島) area, which means "turtle island". This is possibly a clin-d'oeil to the legend of Urashima Tarō^[3].

References

v • d • e Season 30 (2025)
#1148: The Detective Boys and the Two Leaders (Part 1) #1149: The Detective Boys and the Two Leaders (Part 2) #1150: Kaitou Kid and the Crown Trick (Part 1) #1151: Kaitou Kid and the Crown Trick (Part 2) #1152: Last Dance #1153: The Yamahime of Yakushima (Part 1) #1154: The Yamahime of Yakushima (Part 2) #1155: Follow Them! Detective Taxi 2 #1156: The Ishikawa Yorumasshi Mystery (Part 1) #1157: The Ishikawa Yorumasshi Mystery (Part 2) #1158: The Detective Boys and the Traditional Dream House #1159: The Whereabouts of the Goodbye #1160: When the Shishi-odoshi Sounds #1161: The Secret's Afterimage #1162: The Case of Ayumi's Illustrated Diary 5 #1163: The Counting Song Heard in the Dark #1164: The 17-Year-Old Truth (The Bloody Knight) #1165: The 17-Year-Old Truth (The Perceptive Devil) #1166: The 17-Year-Old Truth (The Far-Sighted Bishop) #1167: The 17-Year-Old Truth (The Queen's Gambit) #1168: Genta's Casebook of the Eel #1169: The Mystery of the Man-Eating Classroom (Part 1) #1170: The Mystery of the Man-Eating Classroom (Part 2) #1171: The Reason He Became a Butler (Part 1) #1172: The Reason He Became a Butler (Part 2) #1173: It's a Ghost! #1174: The Glassy Water's Surface (Part 1) #1175: The Glassy Water's Surface (Part 2) #1176: The Hero of Ishinomaki #1177: Find the Phantom Giant #1178: The Crimson Skeleton of Mt. Washio (Part 1) #1179: The Crimson Skeleton of Mt. Washio (Part 2) #1180: The Lucky Cat Saw Everything #1181: Buchi Returns a Favor #1182: Arrest That Face #1183: The Interrogation Room 3 #1184: The Red-Brick Warehouse and the Vanishing Kidnapper (Part 1) #1185: The Red-Brick Warehouse and the Vanishing Kidnapper (Part 2) #1186: Girls Day Mystery 4
Yellow background = TV Original
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[4] The location of Ineura and Aoshima is inside the larger "Kameshima" (亀島) area, which means "turtle island". This is possibly a clin-d'oeil to the legend of Urashima Tarō^[3].

[1] Ine Town, 23 January 2025 report

[2] ttps://www.uminokyoto.jp/column/post/59/

[3] ttps://tangonotimei.com/doc/kamesima.html

[5] ttp://www3.u-toyama.ac.jp/niho/song/urashimataro/urashimataro_e.html

[1]

[2]

[N 1]

[4]

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