The 17-Year-Old Truth

Kinji Ogawara
	37 years old; Chess tournament participant;

Kurumi Shiroi
	31 years old; Chess tournament participant;

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Chronology

‹ The Counting Song Heard in the Dark

List of Episodes

List of Manga Cases

TBD

The 17-Year-Old Truth (17年前の真相 ,17-Nen Mae no Shinsō^?) is the 1164th, 1165th, 1166th and 1167th episode of the Detective Conan anime.

Cast

Characters

Rum

Amanda Hughes (flashback)

Rachel Asaka (flashback)

Kohji Haneda (flashback)

Sharon Vineyard (flashback)

Tsutomu Akai (flashback)

Mary Akai (flashback)

Shukichi Haneda (flashback)

Yoko Okino (on TV)

Case

Situation

The Bloody Knight

Murder

Location: Nishitopia building

Victim: Naoto Kishitani

Age: 32 years

Cause of death: Arrow shot wound to chest

Suspects: Kinji Ogawara, Kunikazu Kisaki and Naoto Kishitani

People

Naoto Kishitani
	Victim (arrow shot) 32 years old Chess tournament participant

Kunikazu Kisaki
	34 years old Chess tournament participant

Ryoichiro Saso
	Deceased (hanged/suicide) Chess player

Resolution

3 Original Videos: Each Person's "17 Years Ago"

◆ Original Videos Supervised by Gosho Aoyama Now Available^[1] ^[2]

To commemorate the “The 17-Year-Old Truth” arc, three original short videos titled “Each Person’s ‘17 Years Ago’”, supervised by creator Gosho Aoyama, have been released on the official Detective Conan YouTube channel.

Each video features one of the characters—Hyoue Kuroda, Rumi Wakasa, and Kanenori Wakita—reflecting on their memories and thoughts from 17 years ago.

[Release Schedule]
• June 4 – Hyoue Kuroda Edition
• June 5 – Rumi Wakasa Edition
• June 6 – Kanenori Wakita Edition
All videos are now available to watch on the official Detective Conan YouTube channel
https://youtu.be/DRmvgTS-2Xs?si=YKW_X2oqGKnTK0t-
https://youtu.be/TzoyrEMsYWw?si=YS3XPcTDmfUCl4Gh
https://youtu.be/m4xjNOA00qY?si=OO_SLiw_e2zJDOeQ

Manga to anime changes

Trivia

On the floor near Kishitani's body is a copy of the Shonen Sunday magazine. It is titled Shonen Yonday (ヨンデー, Yondē) instead of Sunday (サンデー, Sandē).
The chess tournament takes place at West Topia (西トピア Nishi Topia), based on the real Hokutopia (北とぴあ, the "Hoku" means north and "Nishi" means west) building in the Kita Ward of Tokyo. The National Chess Tournaments take place each year at Hokutopia^[3].
Rum wears a cowhide dress shirt.

Gallery

For the full gallery, click here:

In other languages

Language	Title	Translation
Arabic	ذكريات قبل سبع عشرة سنة الحصان الملطّخ بالدماء	Memories of Seventeen Years Ago The Bloody Horse
French (Subbed)	Révélations 17 Ans Plus Tard (Le Démon Clairvoyant)	Revelations 17 Years Later (The Clairvoyant Demon)
Thai

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
« Season 29	List of episodes	Season 31 »

[1] ttps://eiga.com/news/20250604/7/

[2] ttps://mdpr.jp/news/detail/4576353

[3] ttps://japanchess.org/2022/09/%E5%85%A8%E6%97%A5%E6%9C%AC%E3%83%81%E3%83%BC%E3%83%A0%E3%83%81%E3%82%A7%E3%82%B9%E9%81%B8%E6%89%8B%E6%A8%A92022-%E7%B5%90%E6%9E%9C/

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