“Want to know about Detective Conan File 1155?”
“Looking for Sunday Conan 1155 spoilers & theories?”
File 1154 launched a brand-new mini-arc. With the 2026 movie “Highway no Datenshi” confirmed,
this storyline spotlights the film’s leads—Chihaya Hagiwara and Jugo Yokomizo. As with every pre-movie season, this chapter serves as a foreshadowing episode for the characters who will take center stage.
We’re still in the prologue phase, so where does it go from here?
Detective Conan File 1155 “Whereabouts of the Ring” – Spoilers & Analysis
Spoiler warning.
Detective Conan File 1155 “Whereabouts of the Ring” – Spoilers
The chapter picks up right where File 1154 ended: Kurumi Nishie is discovered murdered in her room at the ryokan. On site are Chihaya Hagiwara, Jugo Yokomizo, Conan, and the first finder, Tamie Ichiki. The investigation begins under intense tension.
Blood-spatter and slippers: what the scene reveals
The victim’s throat was cut; the killer likely took a heavy spray of blood. A pair of slippers—apparently worn during the attack—has been left behind, suggesting the culprit kicked them off and fled.
Questioning Ichiki: her timeline in the restrooms
Tamie Ichiki says she searched one of the ryokan’s three restrooms—the one with a goldfish tank at the entrance. She slipped on a cleaning bucket, got drenched, and returned soaked. Kogoro notes that clothes this wet could have washed away blood. But Conan spots bloodstained toilet paper on the floor and proposes a trick:
- Wrap the body with toilet paper,
- receive the back-spatter on the paper,
- then flush the paper to destroy the evidence.
Chihaya adds: if toilet paper was wrapped over a yukata, faint traces should still remain on the cloth and react to luminol. She and Conan decide to re-inspect clothing and current conditions to find who could have completely hidden the blood.
At the table-tennis hall: interviewing Reiko Shibukawa
Reiko Shibukawa is also soaked. She claims she slipped on wet rocks near a pond while heading from the main building to the annex hall in the rain. Scrapes on her hands corroborate a fall, offering a provisional explanation for being drenched.
In the baths: questioning Sumika Jujo
Sumika Jujo tells Chihaya she still hasn’t found the missing ring in the bath area. As a precaution, Chihaya collects Jujo’s yukata and underwear. Kanagawa Prefectural Police deploy additional officers to conduct a thorough search focused on the hot-spring facilities.
The ring’s trail and the luminol results
A small ring-shaped blood mark is found near the scene—implying the killer returned the ring to the victim once, then retrieved it after the murder. Yet despite searching the baths, the table-tennis hall, restrooms, and corridors, the ring is nowhere to be found, and no luminol reactions show on any suspect’s yukata. The case stalls under contradictions: a killer who should be bloodied, but evidence that refuses to appear.
Chihaya & Yokomizo connect dots by phone—“goldfish” unlocks a memory
On the phone, Jugo Yokomizo wonders if the culprit threw the ring into a dark forest—a place only the perpetrator could locate. At that moment, a high-school memory flashes for Chihaya:
Yukata-clad Chihaya stares at a ring.
Chihaya: “Jinpei… how did you…?”
Matsuda: “I could tell you, but in return—”
Kenji Hagiwara: “The hint’s goldfish, sis!”
The “goldfish” clue sparks a crucial idea. Conan arrives and says, “The culprit will find the hidden ring by a certain method, right?” Chihaya has reached the same deduction.
The chapter ends with the decisive hint that there is a special method to recover the ring—setting the stage for the solution.
Continued in File 1156.
Detective Conan File 1155 “Whereabouts of the Ring” – Review & Theories
As an investigation-phase chapter, File 1155 methodically stacks small inconsistencies—the back-spatter contradiction, the vanished ring, and the various reasons people ended up drenched. Because the murder method and the ring’s hiding place remain unresolved, attention naturally shifts to how these threads will pay off in File 1156 and beyond. Below are quick impressions and hypotheses.
Does the past “ring exchange” with Matsuda serve as a clue?
The flashback to Chihaya’s senior year feels crucial. After the shooting-booth game, the “first-prize ring” somehow ends up on her finger; Jinpei Matsuda teases, “I could tell you, but…,” while Kenji Hagiwara drops the line:
“The hint is goldfish, sis.”
This “goldfish” keyword likely ties directly to the ring’s hiding place in the current case. In 1155 we also get reinforcing details:
- A restroom with a goldfish tank at the entrance, and
- Tamie Ichiki slipping and getting soaked right where that tank is located.
Taken together, these beats suggest a foreshadowing thread—goldfish = the ring’s location—that Conan and Chihaya are about to exploit.
We still don’t fully know why “goldfish” connects back to the festival shooting-game memory, but that unresolved link is exactly what makes this setup compelling as we head into File 1156.
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