Spoiler warning: This article reveals the conclusion of the Police Academy flashback and a major development in Conan’s secret.
File 1136 concludes the Police Academy flashback and shows Tooru Amuro connecting Conan Edogawa with Shinichi Kudo. The chapter also resolves what the cadets found inside Monster Mansion and completes the case involving its residents.
The analysis below separates confirmed events from the larger question of how Amuro will use this knowledge. It covers the cadets’ takedown, Shinichi’s earlier meeting with Rei Furuya, and the consequences of the reveal.
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This installment concludes the Police Academy flashback that began in File 1134.
After finally stepping inside the “Monster Mansion” in File 1135, our young Shinichi Kudo, Ran Mouri, and the five Police Academy cadets are about to uncover the truth behind the house’s shady occupants.
What motives are those mysterious men hiding, and how will the cadets dismantle their scheme?
Below you’ll find our spoiler-packed breakdown and early theories for Detective Conan File 1136, “A Once-in-a-Lifetime Encounter” as published in Weekly Shōnen Sunday issue 1 (4 Dec 2024).
Detective Conan File 1136 “A Once-in-a-Lifetime Encounter” – Spoiler
The Police Academy flashback continues.
The cadets now realize the three shady residents are anything but day-traders, yet the men scramble to explain they merely “repair PCs.”
File 1136 Spoiler ① – Matsuda Uncovers a Hidden Room
Jinpei Matsuda spots a wall with a keyhole—but no doorknob.
After dismantling a double-layer drawer, he finds the key, unlocks the panel… and discovers a full indoor marijuana grow room.
Because cannabis requires strict temperature and lighting control, the electricity bill topped ¥30,000—exactly why the cadets flagged it.
File 1136 Spoiler ② – The Truth Behind “Yamamomo”
Rei Furuya explains the scrap of paper young Shinichi found.
“Yamamomo” mixes kanji and katakana to mimic the letters WEED.
The note’s “1 g ¥6,000” is the street price—proving the trio are drug dealers, not day-traders.
File 1136 Spoiler ③ – The Cadets Take Them Down
- Hiromitsu Morofushi quietly confiscates the gun the dealers brought.
- Furuya defeats one man using boxing.
- Wataru Date tackles a second suspect who tries to flee by car.
- The third speeds off on a motorbike, but Kenji Hagiwara and Ran—riding the borrowed FD—corner him on a bike-only trail. Ran reacts enthusiastically even as the FD’s bodywork is left dented.
The commotion ends when Instructor Onizuka arrives and scolds the cadets—again.
File 1136 Spoiler ④ – A Pivotal Exchange Between Shinichi and Furuya
With the case wrapped, young Shinichi realizes that the adults really are police officers. Furuya responds warmly:
Furuya suggests that Shinichi may meet him on a case someday if he remains a detective when he grows up. (unofficial paraphrase)
Their connection is now firmly established.
File 1136 Spoiler ⑤ – In the Present, Amuro Puts It All Together
Back in the present, Café Poirot waiter Tooru Amuro (Furuya) fixes the Mouri apartment’s burst pipe.
When he greets “Conan-kun,” Conan suddenly recalls meeting this cadet seven years ago.
Conan also deciphers the café-master’s coffee label “te-ro-chi-chi-mo-mo” as a cipher for COFFEE.
As Ran starts recalling the old case, Conan mentions the “Yamamomo” clue from his time as Shinichi and then panics. Watching him, Amuro reaches his conclusion:
Tooru Amuro: “I’d long suspected a resemblance… That boy is Conan Edogawa—which means he’s really Shinichi Kudo!” (unofficial translation)
File 1136 ends with Amuro’s discovery of Conan’s true identity now fully confirmed.
Detective Conan File 1136 “A Once-in-a-Lifetime Encounter” – Review & Theories
What first looked like a simple seven-year flashback turns out to be a major turning point for the entire series.
The reveal in this chapter comes from an angle no one saw coming, making File 1136 indispensable reading for Conan fans.
Below are the key talking points and why they matter going forward.
File 1136 Review & Theories ① – Tooru Amuro Finally Deduces Conan’s True Identity
File 1136 shows Amuro concluding that Conan is Shinichi.
Scenes in Black Iron Submarine may suggest that Amuro already suspected the truth, but those are film-only hints. File 1136 supplies the manga development: Tooru Amuro concludes that Conan Edogawa is Shinichi Kudo.
Amuro’s shift from doubt to certainty is the key development, although the story’s exact boundaries around what he will do with that knowledge remain open.
The big question is how Amuro—currently under orders from a mysterious elder to investigate Conan—will act on this knowledge.
File 1136 Review & Theories ② – Conan Realizes Rei Furuya’s Past Connection
The revelation cuts both ways.
Conan remembers that the Police Academy cadet he met seven years ago was Rei Furuya.
Conan realizes that meeting Amuro in his original body could put his secret at risk. That concern is distinct from knowing whether Amuro has already reached the truth.
How will Conan safeguard his secret—and what counter-measures will he take?
File 1136 Review & Theories ③ – Will Conan Recall His Encounters with Matsuda & Hagiwara?
The Police Academy team may disappear from the spotlight for a while, but Conan met Jinpei Matsuda and Kenji Hagiwara when they were still alive.
If future stories focus on Chihaya Hagiwara, those memories could resurface and add emotional weight.
Future references to the late officers may prompt Conan to recall those childhood encounters.
Amuro’s discovery and Conan’s memory of their encounter could affect their future dealings, but the chapter leaves their next moves open.
The article below provides an in-depth overview of Detective Conan Volume 107.
Further reading (contains spoilers): what Amuro knows about Conan's identity.
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