The Glassy Water's Surface

Chronology
‹ It's a Ghost!	List of Episodes	TBD

Episode 1174-1175 (Int. Episode 1232-1233)
Information
Title:	The Glassy Water's Surface
Japanese title:	ガラスの水面 (Garasu no Minamo)
Original airdate:	September 6, 2025 (Part 1) September 13, 2025 (Part 2)
Filler case:	#446
Season:	30
Manga source:	TV Original
Case
Cast:	Conan Edogawa Kogoro Mouri Ran Mouri Hiroki Oi Fumimaro Ayanokoji Maro
Next Conan's Hint:	Boathouse (Part 1) Noctiluca (Part 2)
Staff
Director:	Yasuichiro Yamamoto Nobuharu Kamanaka
Screenplay:	Akatsuki Yamatoya
Storyboard:	Masaki Ozora
Episode director:	1174: Masahiko Suzuki
Animation director:	1174: Masahiro Sekiguchi Maho Tanabe Tomoyuki Kameda Akihiro Ino Tomoyuki Oshita Shinichi Wada Hideaki Shimada Honoka Kikuchi
Character design:	Masatomo Sudo Rei Masunaga (sub-character) Hiroshi Ogawa (design works)
Production cooperation:	1174: 8bit
Voice Cast: Minami Takayama as Conan Edogawa Rikiya Koyama as Kogoro Mouri Wakana Yamazaki as Ran Mouri Kenji Nomura as Hiroki Oi Ryotaro Okiayu as Fumimaro Ayanokoji Jin Urayama as Akihide Kamikawa Fujiko Takimoto as Miku Nishino Ayumi Tsunematsu as Hitomi Togashi Ryota Iwasaki as Hironobu Matsuyama Katsunori Okai as Kanta Tsuji
Music
Opening song:	Poker Face
Closing song:	Fun! Fun! Fun!

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

Conan Edogawa

Kogoro Mouri

Ran Mouri

Hiroki Oi

Fumimaro Ayanokoji

Maro

Case

Situation

Part 1

Murder (past)

Location: Ine Bay between Ineura Port and Aoshima Island

Victim: Takeshi Yamaoka

Time: Two weeks ago

Cause of death: Neurotoxin poisoning

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

Robbery (past)

Location: Urasawa Shrine, Ine Town

Victim: Akihide Kamikawa

Time: Three days before Takeshi's murder

Items stolen: 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: Four 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

People

Kanta Tsuji
	25 years old Owner of boathouse "Yamatoya"

Takeshi Yamaoka
	Victim (poisoned) 25 years old Fisherman

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 Café "Isago-T" 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.
  • 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. The name in the case is taken from Yoshio Urasawa, another screenwriter for the Detective Conan anime-original episodes and Yamatoya's mentor.
  • 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 1,700 inhabitants in its 2025 estimate.
  • The uninhabited island in the bay is in fact the real-life Aoshima Island.
• The song heard before finding the victims' bodies is children's song "Urashima Tarō".

Gallery

In other languages

Language	Title	Translation
French (Subbed)	L'Eau à la surface vitreuse	Water with a glassy surface

See also

• Season 30