“I want to know what happens in Detective Conan File 1165!”
“What are the spoilers and theories for Sunday Conan File 1165?”
The jewelry-store robbery arc that began in File 1163 continues here.
Fusae brand robbery arc
File 1163, “The Teacher’s Gift”
File 1164, “Deadly Pranks”
In File 1164, Conan Edogawa and the others finally started preparing their counterattack. By the very end, Rumi Wakasa, who had kept quiet until then, seemed ready to move at last.
Then came the final image of Ai Haibara grabbing the hem of Rumi’s clothing. That moment leads directly into a new shift.
From here, this article covers spoilers, theories, and impressions for Detective Conan File 1165, “Lonely Malice,” released in Weekly Shonen Sunday issue 32 on July 8, 2026.
Spoilers for Conan File 1165, “Lonely Malice”
The story begins with Haibara grabbing the back hem of Rumi Wakasa’s clothes.
Haibara: “No, Sensei… don’t go over there… don’t!!” (unofficial translation)
Continuing from the end of File 1164, Haibara is trying to stop Rumi in her mind.
It looks as if Haibara senses that Rumi has made some dangerous resolve. File 1165 then begins to dig deeply into what is happening inside Haibara.
The robbers’ timeline keeps moving forward
The robbers who seized the jewelry store are waiting for the repaired item: a pair of goggles worth the equivalent of 100 million yen, brought in by a wealthy customer.
The culprits are also thinking about what to do if their identities are exposed. They have guns, knives, and stun guns, and they are ready to use force if necessary.
Conan and the others have already been preparing to strike back, but the robbers are armed and dangerous. One wrong decision could easily create victims, so the situation is extremely tense.
In the middle of all this, Haibara watches Rumi’s back and thinks to herself.
Haibara: “Sensei… even if you hide it, I can tell… by the scent… because you are… you are…” (unofficial translation)
From there, the chapter enters Haibara’s flashback.
The flashback returns to when Haibara became a child
The flashback begins with Haibara after she took APTX 4869, became a child, and escaped from the Black Organization.
Because her own body had shrunk, Haibara realized that APTX 4869 had the effect of turning a person into a child.
At the same time, she still did not know why her father and mother had created that drug, or what goal they had pursued through their research.
Carrying that question with her, Haibara somehow reached the area near Shinichi Kudo’s house.
But she finally collapsed from exhaustion, and that was where Professor Agasa saved her.
Afterward, Haibara learned that Shinichi Kudo (Jimmy Kudo) had also become a child and was living as Conan Edogawa. She herself began attending Teitan Elementary School as Ai Haibara.
The chapter also shows how Haibara felt at that time.
Haibara: “This boy could be useful…” (unofficial translation)
Back then, Haibara did not see Conan as a companion so much as someone she could use to survive.
Knowing the Haibara we have now, that cold view creates a sharp contrast. It shows that she was still in a period where she trusted no one and was simply trying to live through her isolation.
Over time, Haibara’s feelings begin to change
From there, Haibara becomes involved with Conan, Professor Agasa, and the Detective Boys.
At first, Haibara kept her distance, but little by little, her expression began to change.
As she spent time with the Detective Boys, lived at the professor’s house, and faced cases alongside Conan, her heart clearly changed.
She was no longer only trying to survive. She gradually became someone who worried about others and wanted to protect them.
Then the chapter returns to the present scene inside the jewelry store.
Haibara thinks this about Rumi.
Haibara: “Yes… Sensei, you are me… the me who never met Kudo, the professor, or everyone else… so, Sensei… please do not let lonely malice fill you…” (unofficial translation)
This reveals how Haibara has been looking at Rumi Wakasa.
Haibara has been seeing her former self inside Rumi.
If she had never met Conan, Professor Agasa, or the Detective Boys, Haibara might have lived on while carrying the same lonely malice that Rumi carries now.
That is why Haibara is trying to stop her.
Rumi also notices, from the way Haibara is holding onto her clothing, that the girl is pleading for something.
At that moment, Rumi thinks of Amanda Hughes, who died seventeen years ago.
It is a scene where an emotional connection between Haibara and Rumi becomes visible, even though it cannot be fully explained in words.
Conan comes up with a move to turn things around
Meanwhile, Conan finds a new move that could break the situation open.
He notices that one of the unconscious members of the culprit group has a stun gun.
Conan sees it and decides that it can be used.
Alongside the prank-based setup he had already prepared, gaining a stun gun gives Conan’s side another tool and widens the possibility of a counterattack.
He then tries to share the plan for striking back against the robbers.
File 1165 ends there.
Impressions and theories for Conan File 1165, “Lonely Malice”
File 1165 is less about the robbery itself and much more about stepping deeply into the relationship between Ai Haibara and Rumi Wakasa.
What stood out most was that the chapter gives a major answer to a question that has been lingering for a long time: why does Haibara not seem more wary of Rumi?
The title “Lonely Malice” does not seem to point only at Rumi Wakasa. It also overlaps with the loneliness that Haibara once carried, which makes the chapter hit much harder.
The case itself barely moves forward, but in terms of character emotion and payoff for earlier setup, this is a very important chapter.
From here, I will organize what File 1165 reveals, along with impressions and theories.
Theory and impression 1: Haibara’s setup with Rumi Wakasa pays off
The biggest point in File 1165 is that it reveals how Haibara has been viewing Rumi Wakasa.
Up to now, Conan and Haibara had already understood to some extent that Rumi was not an ordinary person.
Haibara in particular is extremely sensitive to people connected to the Black Organization and to dangerous presences. If she had judged Rumi to be completely on the enemy side, she should have kept a much stronger guard and maintained more distance.
But with Rumi, something was a little different.
Haibara did not simply avoid her. There were many moments where she instead seemed concerned about Rumi, and that had always felt strange.
This chapter makes the reason much clearer.
Haibara saw in Rumi Wakasa the version of herself who never met Conan, Professor Agasa, or the Detective Boys.
That is a deeply affecting payoff.
At first, Haibara also saw Conan not as a friend, but as someone useful. She had a time when survival pushed her to look at other people almost like pieces on a board.
But after Professor Agasa saved her, after she acted with Conan, and after she spent time with the Detective Boys, Haibara changed little by little.
That is exactly why she can understand Rumi’s lonely malice.
Rather than seeing Rumi only as a frightening person, Haibara has been seeing her as the self she might have become if nobody had reached her. With that perspective, Haibara’s feelings toward Rumi suddenly make sense.
Haibara: “No, Sensei… don’t go over there… don’t!!” (unofficial translation)
Those words are not only about stopping Rumi because the situation is dangerous.
Haibara does not want Rumi to cross over to the side ruled only by revenge and murderous intent. She wants Rumi to remain someone who can still come back. That is the wish I felt inside the scene.
Because Haibara herself was able to change, she wants Rumi to change too.
This was the most emotional part of File 1165.
Theory and impression 2: Rumi Wakasa, Haibara, and Amanda Hughes
Another important point in File 1165 is that Rumi looks at Haibara and remembers Amanda Hughes.
For Rumi Wakasa, Amanda Hughes was like her real mother.
By adding a scene where Rumi overlaps Amanda with Haibara, the chapter creates the feeling that something in Rumi’s heart may begin to shift.
What Rumi remembers is Amanda, seventeen years ago, before her death, seeming to plead as she tried to entrust something to her.
Amanda likely understood that she did not have long to live and asked Rumi Wakasa, then connected to the name Asaka, to go to Koji Haneda’s room.
Amanda’s expression and feelings from that moment seem to overlap with Haibara in this chapter.
Haibara is not speaking aloud and trying to persuade Rumi by force. Still, she holds onto Rumi’s clothes and desperately tries to stop her in her heart.
That posture may have looked to Rumi like Amanda’s plea.
This is what makes the scene so painful.
Rumi has carried the incident from seventeen years ago all this time. After losing Koji Haneda and Amanda, she has burned with revenge against RUM and come this far while holding lonely malice inside her.
That is why, even in this robbery case, she had been leaning toward prioritizing her own survival even if it meant allowing several sacrifices.
But if seeing Haibara makes her remember Amanda, that way of thinking may waver slightly.
If Rumi receives Haibara’s wish and moves away from “win even if sacrifices happen” toward “get through this without sacrificing anyone,” that would be a very large change.
It would also prove that Rumi Wakasa is not merely a revenge-driven person, but someone who can still accept another person’s feelings.
To Haibara, Rumi is the self who never met Conan and the others.
To Rumi, Haibara overlaps with Amanda, the person who once entrusted her with something precious.
Because those two perspectives cross, File 1165 suddenly becomes a much deeper chapter.
From the next chapter onward, I want to see how Rumi responds to Haibara.
And I want to see whether Haibara’s wish can keep Rumi Wakasa from crossing a line she cannot return from.
More than the resolution of the robbery itself, Rumi’s emotional movement is what I am most looking forward to.
Theory and impression 3: Will Rumi Wakasa cooperate?
In File 1164, Rumi Wakasa seemed to believe that a few sacrifices could not be helped if that was what it took to defeat the robbers.
If she died here, she would no longer be able to resolve the incident from seventeen years ago or fulfill her revenge against RUM. Because that goal came first, she was about to cut off the people in front of her.
However, after sensing Haibara’s feelings in File 1165, Rumi may stop herself for a moment.
Haibara is not denying Rumi’s revenge itself. She is wishing that Rumi will not be swallowed by lonely malice and walk toward a side she cannot return from.
If that feeling reaches her, Rumi may cooperate with Conan’s plan and choose a method that avoids sacrificing anyone.
Conan is already thinking of a counterattack that uses takoyaki ingredients and a stun gun. Still, to reliably suppress even the culprits with guns, Rumi’s physical ability may become necessary.
If Conan’s brain and Rumi’s combat strength fit together, they should be able to corner the robbers all at once.
In File 1164, Rumi looked at Conan and thought his finishing move was too soft. If File 1166 puts her in the position of covering that softness, then Haibara’s wish will have reached her as action, and that would be a very satisfying development.
Theory and impression 4: Will Fusae and Professor Agasa connect again?
Another point I want to watch for in File 1166 is the relationship between Professor Agasa and Fusae Campbell.
File 1163 revealed that the two are currently email friends.
After so much time has passed since “The Ginkgo-Colored First Love,” just learning that the two are still connected already feels like a happy development. It is also warm that Haibara was the one who created the opportunity.
This time, the stage is a jewelry store connected to the Fusae brand.
Because of that, after the case is solved, there may be a scene where the professor contacts Fusae, or where Fusae hears about the incident at the jewelry store and worries about him.
I do not know whether the story will suddenly go as far as having the two meet again. Still, after tying the Fusae brand this closely into the story, it may not end with only the reveal that they are email friends.
Even a message from Fusae arriving on the professor’s phone would be enough to create a very charming moment.
After a life-or-death robbery case is resolved, ending with a warm exchange between Professor Agasa and Fusae would leave a gentle aftertaste in a very tense arc.
Next File 1166 is in Weekly Shonen Sunday issue 33
The next chapter, Detective Conan File 1166, “Ms. Wakasa’s Requital,” is scheduled for Weekly Shonen Sunday issue 33, released on July 15, 2026.
The next story is File 1166, “Ms. Wakasa’s Requital.”
For more context around Volume 109, follow the collected Volume 109 information and spoiler coverage on the site.
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