recursal/Fanatic-Fandom huggingface dataset:
Riko Niki

**Riko Niki** (ニ木 理子, *Niki Riko*) is a cognitive psychology student at Tokyo University and part of Professor Maruyama's research group.

## Physical description

Niki has long fair hair and dark eyes. She has a fringe and wears her hair in a messy bun on her back; two loose strands frame her face.

## Biography

### History

At some point, Niki cancelled a MRI and was scolded by Kanae Himeno for it. This angered Niki so much that she screamed "Die, you ugly jerk!" at her.

### Psychological Research Lab Murder Case

When Kanae Himeno is showing Chicory Monki, Ron Kamonohashi, and Totomaru Isshiki, who have come to Maruyama's research lab to gather data, around, Renjiro Imai and Shun Oigawa get into an argument about the reservation for the experiment room. Niki asks Himeno why she does not go and "flirt" with Takanori Aoe so that he can arbitrate. After all, Himeno is always with Aoe and says "Oh, Professor! Professor!" so often that it could be her catchphrase.

The next morning, Himeno is killed in an explosion in the lab when she opens the door to the shield room as it has been filled with flammable gas. Toto and Ron investigate her murder and gather Niki, Imai, and Oigawa in a lecture room to interview them as Aoe told them that the use of the experiment room is left to them. Toto asks if any of them knew that Himeno would be using the experiment room this morning. Niki does not reply, but Oigawa and Imai inform Toto that they all knew as they used the lottery feature of a messaging app to determine who would get the experiment room this morning.

Then, Totomaru wants to know what they were doing until this morning, and Niki replies that she went to sleep as it was late. She woke up at nine a.m. as always and headed to Tokyo University afterward. After Oigawa reveals that Imai stalked Himeno, Niki calls him a "creeper," and Imai angrily replies that she hated Himeno the most and screamed at her to die when Himeno scolded her for cancelling the MRI experiment. They yell at and accuse one another, and Toto tells them to calm down

Niki is later present when Toto and Ron gather her, Imai, Oigawa, and Aoe to reveal the culprit and tell them what actually happened. She is shocked to learn that Aoe killed Himeno and nearly dies when Aoe attempts to blow them up with a bomb. Fortunately, Ron can tackle him down beforehand.

## Etymology

* The name "Riko" means "reason, logic" (理, *ri*) and "child" (子, *ko*).
* Her surname "Niki" means "second tree" (ニ木).

## References

1. ↑ 1.0 1.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 35, pages 7-8
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 36, page 14
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 35, pages 13-14
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 35, pages 17-18
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 36, page 3
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 36, pages 10-15
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 37, pages 2-16
Kimura

**Kimura** (木村, *Kimura*) is an electrician and musician. He plays the large drum.

## Biography

### Obon Dance Murder Case

At an Obon festival in Tokyo, Kimura alongside Tateishi and Tsutsui perform as Nana Haruno's band. While they are on stage, there is some commotion over an apparent gun; the situation quickly calms down when the origin of the "gunshot" is discovered. Not long afterward, there is a blackout during which Haruno is stabbed. Subsequently, an ambulance is called, and Haruno is rushed to the hospital.

Later, Kimura, Tateishi, and Tsutsui are interrogated by Totomaru Isshiki from the Metropolitan Police Department. He asks them why they did not stop playing when the lights turned off, and Kimura replies that they thought it was part of the act. Toto then inquires whether they noticed anyone else's presence on stage during the 30-second blackout. None of them did; Tsutsui also says that he was right in front of the stairs and would have noticed if someone went up the stage which no one did.

## References

1. ↑ 1.0 1.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 69, page 12
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 70, page 9
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 69, pages 11-19
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 70, page 2
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 70, pages 9-10
Sachiko

* Anime
* Manga

**Sachiko** (さちこ, *Sachiko*) is a guest at the Benizome Hot Springs.

## Physical description

Sachiko has long light-colored hair and brown eyes. She wears square-rimmed glasses, and has a large beauty mark on her chin.

## Biography

### Benizome Hot Springs Murder

Sachiko and her husband spend a few days at the Benizome Hot Springs. Although they get along well at dinner, they quarrel later in the evening because of a joke he told. Sachiko even wants to get divorced because of it. A drunk Amamiya tearfully tells her not to do it before she heads to bed. Sachiko considers her words and concludes that she was simply feeling "a little funny." Her husband then suggests to relax in the hot spring because she has not been in it yet. She follows his suggestion and goes to the women's bath while her husband remains in the lounge with Michiyo, Ron Kamonohashi, and Totomaru Isshiki.

The next morning, an employee finds Sachiko's corpse floating in the women's bath. Amamiya confirms her death and estimates that she died sometime between midnight and 2 a.m. A coroner later examines the body and determines that Sachiko died of a heart attack caused by a heat shock from the temperature difference between the dressing room and the hot spring.

Ron and Toto investigate Sachiko's death and deduce that she was murdered: Her husband switched the curtains of the men's and women's bath to get access to the women's bath. He used two rain gutters to replace the bath's hot water with the river's ice cold water and covered the entrance to the hot spring with a bathmat to let her fall into the freezing water. He knew of her weak heart and that the heat shock she would experience would kill her.

Sachiko's husband confesses to the murder and reveals that he has been having an affair with Michiyo; he killed Sachiko to be with Michiyo.

## Etymology

* The name "Sachiko" is written in hiragana (さちこ), which has no special meaning. However, when written in kanji (幸子), it could possibly mean "happiness, good luck" (幸, *sachi*) and "child" (子, *ko*).
	+ While her name is spelled in hiragana in the manga, it is given in kanji in the credits of Episode 3.

## Trivia

* In the anime, Sachiko has dark brown hair and her beauty mark is significantly smaller.
* Her voice actress also voices an employee at the Benizome Hot Springs in Episode 4.
	+ Sachiko also has the same voice actress as Matsutarou, a character from another work by Akira Amano, *ēlDLIVE*.

## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 3, page 15
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 3, pages 21-22
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 3, pages 24-26
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 4, page 11
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 4, page 13
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 4, pages 14-20
The Case of the Yadagami-sama Murders Pt. 1 (episode)

## The Case of the Yadagami-sama Murders Pt. 1

**The Case of the Yadagami-sama Murders Pt. 1** (夜蛇神様殺人事件【前編】, *Yoru Jagamisama Satsujin Jiken [Zenpen]*) is the twelfth episode of the *Ron Kamonohashi: Deranged Detective* anime.

## Synopsis

Ron decides to take on the search for the missing family member, as previously requested by Spitz. In exchange, he offered to obtain the file on the "Bloody Field Trip Case" which involves Ron's own mystery. Having accepted the condition, Spitz takes Ron and Toto to Yada Village in the Yamanashi Prefecture where his older brother, a folklorist, disappeared...

Ron agrees to take on Spitz's search request in exchange for his obtaining a file on the Bloody Training Incident. Spitz accepts Ron's terms and takes Ron and Toto to Yadamura, a village in Yamanashi prefecture where his ethnologist brother disappeared.

## Characters and cast

* **Ron Kamonohashi:** Yōhei Azakami
* **Totomaru Isshiki:** Junya Enoki
* **Spitz Feier:** Taku Yashiro
* **Shepherd Feier:** Katsuyuki Konishi
* **Mayor/Village chef:** Katsuhisa Hōki
* **Mii:** Akira Sekine
* **Muroi:** Shunichi Maki
* **Villagers:** Chado Horii, Ryousuke Higa, Yuuji Murai, Shomaru Saza
* **Surveyor/Official:** Kodai Inaoka

## Gallery

### Episode stills

Toto speaks with Ron over the phone.Spitz looks depressed.Ron's flat in the Maison du Kamonohashi is now partially furnished.Nandan brown sugar syrup.Spitz is overjoyed.Ron tells Toto to be quiet because he heard something.The waterfall by Yada Village.Toto was nearly beheaded by an axe.Ron, Toto, and Spitz look at Yada VillageYadagami-samaMuroiThe surveyorThe mayorMii asks why Spitz is here.A photo of Spitz's brother, Shepherd, from before his disappearance.Ron shares his brown sugar syrup meal with Spitz while Toto watches by.Yadagami-sama apparently curled around the surveyor.The surveyor's corpse in the waterfall basin.Spitz claims he and Ron are hobby buddies that collect rare wrapping paper.Mii testifies she was making an offering yesterday.The shrineRon says he is 200% sure that nothing supernatural is going on.Spitz and Shepherd Feier, years ago.Teenaged SpitzRon solved the case.
## References and notes

1. ↑ "E12 - The Case of the Yadagami-sama Murders (Part 1)" — Crunchyroll

1. ↑ Translated from the Japanese description with DeepL Translator and Google Translate
Volume 5

## Statistics

**Volume 5** is the fifth volume of the *Ron Kamonohashi: Deranged Detective* manga by Akira Amano.

## Synopsis

Ron and Toto invite Dr. Mofu to go swimming with them. It was for mental and physical refreshment, but Dr. Mofu found a drowned body. The body is of a missing surfer who was thought to have drowned in the ocean at night after getting drunk, but Ron declares it a murder, not an accident. The unique duo of a detective with a reason and a pure, lost detective take on a case in the fifth volume of this detective drama!

## Chapters included

29. The Case of the Midsummer Beach Hut Drowning Pt. 2
30. The Case of the Midsummer Beach Hut Drowning Pt. 3
31. The Case of the Genius Composer Kidnapping Pt. 1
32. The Case of the Genius Composer Kidnapping Pt. 2
33. The Case of the Genius Composer Kidnapping Pt. 3
34. The Case of the Genius Composer Kidnapping Pt. 4
35. The Case of the Psychological Research Lab Murder Pt. 1
36. The Case of the Psychological Research Lab Murder Pt. 2
37. The Case of the Psychological Research Lab Murder Pt. 3
38. The Case of the Plateau Auberge Serial Murders Pt. 1

## Notes

1. ↑ Translated from the Japanese description with DeepL Translator
Third hacker

The **third hacker** is a member of a hacker group.

## Physical description

The third hacker has combed-back dark hair, a lean face, and a beauty mark on his forehead.

## Biography

### History

At some point, the third hacker, Ryouji Katsunami, and Hibino were contacted by the M. Family. The M. Family introduced them to one another, and they formed a hacker group and committed cryptocurrency theft, following the Moriartys' plan. Everything went well until one of them forgot to encrypt their access point, and they got traced. When they noticed that their theft had been uncovered, they loaded the stolen cryptocurrency onto a cold wallet and fled.

### Shibuya Revelation Serial Murders Case

After their failure, Winter Moriarty tracks the third hacker, Ryouji Katsunami, and Hibino down and uses them to test Ron Kamonohashi.

Winter kidnaps the third hacker and impersonates him. They tie up the third hacker, wrap bombs around him, and leave him with Amamiya, who was also tied up and wrapped in bombs, in the first-floor storage room of the Shibuya City View Tower. Winter intended to blow the hacker and Amamiya up at 12 a.m. However, Spitz Feier is able to get to them on time and save them, only for the third hacker to swallow a hidden poison capsule on the way to the Metropolitan Police Department.

## References

1. ↑ 1.0 1.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 27, pages 11-12
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 24, pages 3-5
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 25, pages 13-14
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 26, pages 3-5
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 26, page 14
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 26, page 3
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 26, page 18
Volume 9

## Statistics

**Volume 9** is the ninth volume of the *Ron Kamonohashi: Deranged Detective* manga by Akira Amano.

## Synopsis

Ron is visited by Elmer, a man who claims to be his best friend and partner. Ron did not remember Elmer, who said was a classmate of his at BLUE. Meanwhile, Toto is impatient with the appearance of Ron's partner...!? The unique duo of a detective with a reason and a pure, lost detective is in danger of being dissolved! Volume 9 of the detective action drama!

## Chapters included

69. The Case of the Obon Dance Murder Pt. 2
70. The Case of the Obon Dance Murder Pt. 3
71. The Case of the Obon Dance Murder Pt. 4
72. An Invitation From Mylo Pt. 1
73. An Invitation From Mylo Pt. 2
74. The Case of the Bloody Field Trip Pt. 1
75. The Case of the Bloody Field Trip Pt. 2
76. The Case of the Tragic Cruise Serial Murders Pt. 1
77. The Case of the Tragic Cruise Serial Murders Pt. 2
78. The Case of the Tragic Cruise Serial Murders Pt. 3

## Notes

1. ↑ Translated from the Japanese description with DeepL Translator
Volume 2

## Statistics

**Volume 2** is the second volume of the *Ron Kamonohashi: Deranged Detective* manga by Akira Amano.

## Synopsis

The "Hand Collector" is a serial killer who cuts off the hands of his victims and takes them with him. An incident that occurred in the Aichi Prefecture also occurred in Tokyo. Totomaru is selected for a joint investigation with the Aichi Prefectural Police and the Metropolitan Police Department. It's up to the Aichi Prefectural Police to solve the mystery of the unusual murderer, and whether it's the kingfisher with a keen eye or Ron's guide, Totomaru...!? The unique duo of a detective with a reason and a pure, lost detective take on a case in the second volume of this detective drama!

## Chapters included

6. The Case of the Hand Collector Killer Pt. 2
7. The Case of the Live Broadcast Murder Pt. 1
8. The Case of the Live Broadcast Murder Pt. 2
9. The Case of the Island Observatory Murder Pt. 1
10. The Case of the Island Observatory Murder Pt. 2
11. The Case of the Island Observatory Murder Pt. 3
12. The Case of the Island Observatory Murder Pt. 4

## Gallery

Full cover, textlessBack coverInside cover, back
## Notes

1. ↑ Translated from the Japanese description with DeepL Translator
Renjiro Imai

**Renjiro Imai** (今井 蓮次郎, *Imai Renjirō*) is a cognitive psychology student at Tokyo University and part of Professor Maruyama's research group.

## Biography

### History

Imai used to date Kanae Himeno. After she broke up with him, he began to go to her house every day. He swore to make her pay someday for dumping him.

### Psychological Research Lab Murder Case

When Kanae Himeno is showing Chicory Monki, Ron Kamonohashi, and Totomaru Isshiki, who have come to Maruyama's research lab to gather data, around, Imai and Shun Oigawa get into an argument about the afternoon reservation for the experiment room; both say that they reserved it first.

The next morning, Himeno is killed in an explosion in the lab when she opens the door to the shield room as it has been filled with flammable gas. Toto and Ron investigate her murder and gather Imai, Oigawa, and Riko Niki in a lecture room to interview them as Takanori Aoe told them that the use of the experiment room is left to them. Toto asks if any of them knew that Himeno would be using the experiment room this morning. Imai says that all of them knew, and Oigawa elaborates that they used the lottery feature of a messaging app to determine who would get the experiment room this morning.

Then, Totomaru wants to know what they were doing until this morning, and Imai replies that he went to sleep as it was late. He woke up at nine a.m. as always and headed to Tokyo University afterward. Imai asks if this will ruin his future and then informs Toto and Ron that Oigawa is suspicious as he disliked Himeno for reporting him to the university once. Oigawa replies that Imai used to stalk Himeno after she dumped him. Niki calls Imai a creeper, and Imai says that she hated Himeno the most and screamed "Die, you ugly jerk!" when Himeno scolded her for cancelling the MRI experiment. They yell at and accuse one another, and Toto tells them to calm down

Imai is later present when Toto and Ron gather him, Niki, Oigawa, and Aoe to reveal the culprit and tell them what actually happened. He is shocked to learn that Aoe killed Himeno and nearly dies when Aoe attempts to blow them up with a bomb. Fortunately, Ron can tackle him down beforehand.

## Etymology

* The name "Renjiro" means "lotus, water lily" (蓮, *ren*), "next" (次, *ji*) and "son" (郎, *ro*).
* His surname "Imai" means "now/just now, immediately, at the present time, this" (今, *ima*) and "well, mine shaft, pit" (井, *i*).

## References

1. ↑ 1.0 1.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 35, pages 7-8
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 36, page 13
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 36, page 13
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 35, pages 13-14
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 35, pages 17-18
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 36, page 3
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 36, pages 10-15
8. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 37, pages 2-16
The Case of the Cryptid Serial Murders Pt. 11

**The Case of the Cryptid Serial Murders Pt. 11** is the 111st chapter of the *Ron Kamonohashi: Deranged Detective* manga.

## Characters in Order of Appearance

* Hutter Horn
* Guard
* Marsh Leipley
* Totomaru Isshiki
* Ron Kamonohashi
* Night Bran Jr.
* Billie Za Gozzila (flashback only)
* Udy Dietner (flashback only)
* Alissa Beaumont (flashback only)
* Chelsea Gadd (flashback only)
The Case of the Bloody Field Trip Pt. 1

**The Case of the Bloody Field Trip Pt. 1** is the 74th chapter of the *Ron Kamonohashi: Deranged Detective* manga.

## Characters in Order of Appearance

* Aimee Emmerich (flashback only)
* Disguise instructor (flashback only)
* Hirsch (flashback only)
* John Grizzly (flashback only)
* Fin Fennec (flashback only)
* Ron Kamonohashi
* Shachi (flashback only)
* Elmer Stingray (flashback only)
* Totomaru Isshiki
* Spitz Feier
Takeko Suzuki

**Takeko Suzuki** is a resident of the Maison du Kamonohashi. She lives in Room 402.

## Trivia

* She shares her surname with an unseen member of the Metropolitan Police Department and the Yada Village resident with whom Muroi stayed.

## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 118, page 5
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 2, page 9
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 19, page 11
World Detective Alliance

The **World Detective Alliance** (世界探偵連盟, *Sekai tantei renmei*) is the organization that monitors all detective activities. It issues detective licenses.

## History

While the alliance is investigating the Missing Detectives Case, someone illegally accesses their network and shows them a video. In it, the apparent culprit states that the disappearances and murders will continue until they have figured out what the "opposite" of a detective is.

## Known members

* Antoine Dupin (アントワーヌ・デュパン, *Antowānu Dyupan*) (president)
* Night Bran Jr.'s father

## Trivia

* MangaPlus also translates the name of the organization as "World Detective Union" or "World Detective Association." "Alliance" has been used the most so far.

## References and notes

1. ↑ 1.0 1.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 64, page 16
2. ↑ 2.0 2.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 97, page 22
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 100, page 2
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 99, pages 20-23
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 96, page 16
6. ↑ 6.0 6.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 107, page 8
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 97, page 2
8. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 96, pages 15-16
9. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 99, page 20
10. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 100, pages 2-3
11. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 103, page 3
12. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 108, pages 3-4

1. ↑ The MangaPlus translation mistakenly gives his surname as "Dupain" although it is a reference to C. Auguste Dupin.
Totomaru Isshiki/Relations

## Ron Kamonohashi

Toto is Ron's investigative partner or, as Ron jokingly calls him, "puppet" as he "controls" him from the shadows. Ron tells him the solution to cases, and Totomaru presents them as his own deductions as Ron is banned from doing any detective work himself. Albeit a little reluctant at first, Totomaru grows fond of their endeavor as they can save numerous lives like that.

Totomaru regards Ron as his friend and can understand him and his feelings even if Ron himself cannot. He trusts and believes in him and is always there to remind Ron that, just because he has the strange ability to pressure culprits to death, it does not mean that he is a bad person; Toto always reminds Ron that he is, in fact, a good person who cares for others. Furthermore, Omito Kawasemi notes that Toto is the one that brings out Ron's full potential.

In turn, Ron is seemingly only using Totomaru to continue detective work and satisfy his urge to solve cases—at least, at first. He eventually grows fond of Totomaru and starts to trust him and feel secure in his presence. He even starts to think of Toto as his friend.

## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 2, pages 5-6
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 8, page 28
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 11, page 9
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 10, pages 18-19
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 8, pages 29-30
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 6, page 25
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 10, pages 23-24
8. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 16, page 9
The Case of the Cryptid Serial Murders Pt. 14

**The Case of the Cryptid Serial Murders Pt. 14** (幻想獣連続殺人事件⑭, *Gensō-jū renzoku satsujin jiken⑭*) is the 114th chapter of the *Ron Kamonohashi: Deranged Detective* manga.

## Characters in Order of Appearance

* Billie Za Gozzila
* Spitz Feier
* Winter Moriarty
* Totomaru Isshiki
* Ron Kamonohashi
* Alice Moriarty

## Trivia

* MangaPlus gives the chapter title as "The Case of the Mythical Beast Serial Murders Pt. 14" on the cover, though it still lists the chapter as "The Case of the Cryptid Serial Murders Pt. 14" on the website.
Ron Kamonohashi: Deranged Detective Wiki:Affiliates

If you are interested to become an **affiliate to the Ron Kamonohashi: Deranged Detective Wiki**, please leave a message including either a link to the wordmark or the workmark itself to an active administrator's wall. Upon affiliating, please add either the wordmark with or without background to your wiki.

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Surveyor

* Anime
* Manga

The **surveyor** is a government official that was sent out to Yada Village.

## Biography

### Yadagami-sama Murders Case

The surveyor comes to Yada Village to tell the mayor and the residents about the government's plan to sink the village to build a dam; he has, thus, come to evict the whole village. His arrival and his announcement is met with great disapproval and protest, and the villagers tell him that his actions will enrage Yadagami-sama. At some point, Spitz Feier, Ron Kamonohashi, Totomaru Isshiki arrive and witness the argument.

The surveyor says that he has only come to do some preparatory surveying and that he will start his work tomorrow before he heads to the mayor's hut where he has been staying. He also tells everyone that he will sue anyone who interferes with his work and the dam plans.

The next morning, the surveyor's corpse is found in the waterfall basin outside the village. Around his neck are marks that look like a snake's scales, but are likely rope marks. The local police, Totomaru, Ron, and Spitz investigate his death. The examination of the surveyor's body reveals that he died when he hit his head falling into the basin.

Ron, Toto, and Spitz later deduce that the mayor strangled the surveyor with rope from Yadagami-sama's shrine and pushed him into the basin because he found out about Shepherd Feier. The surveyor realized that the mayor was hiding Shepherd for a reason and extorted money from him to keep the secret. He eventually escalated his intimidation and threatened to reveal the whereabouts of Shepherd; this drove the mayor to kill the surveyor.

## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 18, pages 15-18
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 18, pages 24-25
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 19, page 3
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 20, pages 3-9
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 20, page 18
Nyo-Nyon

**"Nyo-Nyon"** (によによん, *Niyo-Niyon*) is a singer.

## Biography

### History

At some point, the singer was hired by Mitsubashi's agency to be Nyo-Nyon's "face" as Mitsubashi did not want to reveal her own. The singer has been performing as Nyo-Nyon ever since.

### Genius Composer Kidnapping Case

When "Nyo-Nyon" performs a concert in Tokyo, she receives a greeting card and a guitar from Hummingbird, the talent kidnapper. Someone who works at the concert venue, Higuchi, consults his friend Totomaru Isshiki, whom he invited to the performance, regarding the issue. While discussing the matter, "Nyo-Nyon" becomes fascinated by Ron Kamonohashi. She later requests both Toto and Ron to protect her alongside a group of officers under Namazu from the Metropolitan Police Department in "her" mansion. As the mansion is located in both the Tokyo Metropolitan Area and the Yamanashi Prefecture, Sannou and other officers from the Yamanashi Police also received an announcement from Hummingbird and arrive at "Nyo-Nyon's" mansion.

"Nyo-Nyon" invites everyone inside for tea, saying that her "manager" Mitsubashi's black tea is delicious. Then, she tells them that the mansion is "her" power spot and the place where "she" created all "her" major songs. Ron remarks that the building is rather unique, and "Nyo-Nyon" explains that the mansion once burned down and was rebuilt; only the clocktower remained from the original building. Because of that, numerous smoke detectors have been placed throughout the entire mansion.

Afterward, "Nyo-Nyon" takes Namazu, Toto, Ron, Sannou, and Mitsubashi to the clocktower where "her" composition room is. Namazu inspects the room and then allows "Nyo-Nyon" to stay there as it seems to be the ideal place to keep her safe from Hummingbird. She is locked inside it while the others go downstairs.

Sometime later, the smoke detectors are set off and a warning rings through the mansion that there is a fire in the living room. Hearing the alarm, "Nyo-Nyon" panicks and looks out of the window. On the ground, she sees a group of police officers with a stretched-out curtain. They beckon her to jump, and she jumps. However, those police offers are, in fact, accomplices of Hummingbird. They make the singer fall asleep and hide her in the rear garden.

Mitsubashi, Toto, Ron, Sannou, and Namazu have been waiting in the living room though, and there is no fire anywhere. Immediately, Sannou, Toto, Ron, and Namazu hurry upstairs to get to "Nyo-Nyon," but when they arrive in the composition room, she is already gone.

## References

1. ↑ 1.0 1.1 1.2 *Ron Kamonohashi: Deranged Detective* manga; Chapter 34, page 7
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 31, pages 11-18
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 32, pages 5-10
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 32, pages 15-16
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 34, pages 10-11
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 34, page 18
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 32, pages 15-18
Volume 4

## Statistics

**Volume 4** is the fourth volume of the *Ron Kamonohashi: Deranged Detective* manga by Akira Amano.

## Synopsis

Ron and Toto visit Yada Village to search for Spitz's brother. An official promoting the development of a dam was also staying in the village, but he disappeared from his room and was found dead. The villagers, who believe in "Yadagami-sama" who has the power of disappearance, say it was because they were touched by the wrath of Yadagami-sama, but... What is the truth behind the mysterious disappearance and murder!? The unique duo of a detective with a reason and a pure, lost detective take on a case in this fourth volume of the detective drama!

## Chapters included

19. The Case of the Yadagami-sama Murders Pt. 2
20. The Case of the Yadagami-sama Murders Pt. 3
21. The Case of the Yadagami-sama Murders Pt. 4
22. The Case of the Shibuya Revelation Serial Murders Pt. 1
23. The Case of the Shibuya Revelation Serial Murders Pt. 2
24. The Case of the Shibuya Revelation Serial Murders Pt. 3
25. The Case of the Shibuya Revelation Serial Murders Pt. 4
26. The Case of the Shibuya Revelation Serial Murders Pt. 5
27. The Case of the Shibuya Revelation Serial Murders Pt. 6
28. The Case of the Midsummer Beach Hut Drowning Pt. 1

## Notes

1. ↑ Translated from the Japanese description with DeepL Translator
Tetsu Yamada

**Tetsu Yamada** (山田 テツ, *Yamada Tetsu*) is a college student and a friend of Tatsuo Kinoshita and Hajime Satou.

## Biography

### Sandbox Murder at Dawn Case

Yamada and Hajime Satou come to the park to identify their friend Tatsuo Kinoshita's corpse and be questioned. Satou confirms that it is Kinoshita, and Yamada cannot believe that he is dead. When he and Satou introduce themselves to Totomaru Isshiki and Ron Kamonohashi, they immediately recognize Yamada's name from the writing in the sandbox—"I was killed by Tetsu Yamada"—, and Totomaru asks him about it. Yamada denies that he killed Kinoshita and says that buried corpses cannot write; someone must be framing him.

Ron then asks Yamada why his shoes are full of dirt and sand if he has only just arrived. Yamada replies that he has been in the mountains lately and that he has an alibi for the time of Kinoshita's death: He was at home from midnight to now, 7:20 a.m. He was watching a movie with friends and only just came out with Satou to take out the trash. Yamada asks Toto to quickly catch his best friend's murderer.

At 7:40 a.m., Totomaru and Ron gather Yamada, Satou, and the other police officers. Totomaru then tells them what happened: Yamada killed Kinoshita.

Before the movie started at 12 a.m., Yamada drugged Kinoshita to make him fall asleep before he dragged him to the nearby park. There, he dug a hole in the sandbox and buried Kinoshita in it, but left the space around his head free of sand. Yamada ran a hose through the sand to provide him with air and covered Kinoshita's head with a blue sheet and weighted the sheet down with four stones. In the middle of the sheet was a hole, and when Yamada placed sand on top of the sheet, it was turned into an antlion trap: The sand slowly fell through the hole and onto Kinoshita's head. The sand gradually covered his head, and Kinoshita died of asphyxiation at around 3 a.m.

Yamada had also tied a string to the sheet so that he could pull it away and to his house after Kinoshita was dead. Because of the time shift caused by the suffocation device and the fact that he could easily remove the sheet from his home, Yamada dared to write "I was killed by Tetsu Yamada" into the sand. If he did that, he would also get questioned early enough to ensure that his testimony would not fall apart.

Yamada confesses and says that his life is now over. He adds that he killed Kinoshita because he flirted with Mika with whom Yamada has been together since junior high school. His confession triggers Ron's Kill on Sight ability, and Ron pressures Yamada to stab himself. Dazed, Yamada takes an empty bottle from his trash bag and shatters it. Before he can stab himself with it, Toto stops him by tackling him to the ground. Yamada is arrested afterward.

## Etymology

* His surname "Yamada" means "mountain, hill" (山, *yama*) and "field, rice paddy" (田, *ta*/*da*).

## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 15.5, page 27
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 15.5, pages 14-18
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 15.5, pages 21-32
Storys & more

*Storys & more* ist ein Antiquariat, in dem Erin vor zwei Jahren Schutz vor einem plötzlichen Regenschauer gesucht hatte. Ein verblichenes Schild hängt über der roten Eingangstür, die beim Öffnen ein Glöckchen klingeln lässt. Das Antiquariat liegt zwischen einem altmodischen Schuhladen, einem Haushaltswarenladen und einem Juwelier versteckt, doch die vorbeilaufenden Passanten scheinen es gar nicht wahrzunehmen.

Der Geruch nach Druckerschwärze, Holz und altem Leder liegt im Inneren in der Luft. In dem gesamten Laden stapeln sich Bücher in unzähligen Regalen, auf der schmalen Ladentheke und auch auf dem Boden. Hinter der Ladentheke verbirgt ein nach kaltem Räucherwerk riechender Vorhang weitere Räume. In diesem Antiquariat findet Erin nun das Tagebuch von Abaigeal Dubh.

## Besitzerin

Thisha, die Besitzerin des Antiquariats hat silbergraue Haare und die Haare zu einem Dutt gebunden. Auf der Nase trägt sie eine Brille im Tigermuster. Sie trägt eine sonnenblumen-gelbe Strickjacke.

Achtung, an dieser Stelle folgt ein Spoiler aus Kapitel 42:

Thisha bezeichnet sich selbst als Wächterin. Sie hat Kenntnis von der Hexenwelt, ist jedoch selbst keine Hexe. Ihr Buchladen taucht dann auf, wenn jemand den Laden braucht. Von Thisha erfährt Erin, dass Abaigeal Dubh eine Tochter namens Aurelie hatte, welche wiederum einen Sohn hatte, den Aurelie vor Abaigeal verheimlichte. Erins Familie stammt von diesem Sohn ab, sie ist somit eine Nachfahrin von Abaigeal.
Tragic Cruise Serial Murders Case

Show spoilers/Hide spoilers

* Kei
* Two colleagues from a design agency

The **Tragic Cruise Serial Murders Case** is a serial murder case orchestrated by Mylo to challenge Ron whether he can identify the culprit behind the Bloody Field Trip Case.

It is the 24th main case in the *Ron Kamonohashi: Deranged Detective* series, and the final case of part 1.

## Overview

On October 23, Ron and Toto board the *Precious Dolphin* in Yokohama after receiving tickets for the luxury ship from Mylo. Toto and Ron attend the welcome party in the Precious Hall where they encounter Elmer, Shachi, Fin, and Hirsch. Spitz came aboard the ship masqueraded as a waiter but he is identified as an impostor and dragged off the ship during the party.

Following the ship's departure, Ron receives a message from Mylo with his itinerary: At midnight, someone will give him a clue about the M. Family spy in Bar Mermaid.

That night, Ron and Totomaru head to the bar; Hirsch is there as well. At midnight sharp, someone starts to play the piano and a man drops dead after drinking poisoned wine during his 40th birthday dinner with his wife Rumi.

Beforehand, someone called the front desk on Rumi's behalf to request a song and order a wine from her husband's birth year for the celebration. That person used a voice changer, making their voice sound "mechanically male." Furthermore, the bottle's label was pasted over with another; the wine is actually from 2020.

## References

1. ↑ 1.0 1.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 77, page 2
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 76, pages 6-10
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 76, pages 15-19
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 77, pages 2-10
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 77, page 12
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 77, pages 13-20
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 78, pages 2-10
8. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 78, pages 7-9
Todoroki

**Todoroki** (轟, *Todoroki*) is the captain of the *Precious Dolphin*.

## Biography

### Tragic Cruise Serial Murders Case

On October 23, Todoroki greets the passengers aboard the *Precious Dolphin* and wishes them an enjoyable cruise across Asia before the ship departs. Later, when the welcoming party in the Precious Hall has ended, Todoroki announces over the speakers that the ship will leave the harbor soon; if anyone wants to see the crowd that has come to see them off, they should head to the deck. Furthermore, an itinerary of their course will be sent to everyone's rooms soon.

That evening, a man is poisoned in Bar Mermaid and dies. A staff member is quick to inform Todoroki of the murder, and Todoroki tells him that they will halt the voyage if needed; for now, the crime scene should be secured. After the man leaves, Todoroki breaks down in his cabin: He cannot stop the ship because the M. Family is threatening to kill his wife and daughter if he does.

## References

1. ↑ 1.0 1.1 *Ron Kamonohashi: Deranged Detective* manga; Chapter 78, page 12
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 77, page 2
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 76, page 10
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 77, page 10
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 77, pages 16-20
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 78, pages 2-12
Ron Kamonohashi: Deranged Detective Original Soundtrack

***Ron Kamonohashi: Deranged Detective* Original Soundtrack** (TVアニメ『鴨乃橋ロンの禁断推理』オリジナルサウンドトラック, *TV Anime "Kamonohashi Ron no Kindan Suiri" Orijinaru Saundotorakku*) is a compilation of music from the first season of the *Ron Kamonohashi: Deranged Detective* anime. It was composed by Yo Tsuji and released digitally on December 26, 2023.

## Tracklist

1. Overture
2. 本日は晴天なり、本日は晴天なり
3. Daily routine
4. 暇つぶし
5. Ron & Toto
6. 無駄話
7. 凸凹
8. 豚に真珠
9. Half shuffle boogie
10. 誰そ彼
11. End-all
12. Follow me?
13. My good friend
14. Together
15. Eccentric man
16. Dr. Mofu
17. Japanese TV show
18. To be continued.
19. 1st contact
20. 青の記憶喪失
21. Sorrow
22. トトの決意
23. Toward to the sky
24. 浮きつ沈みつ
25. Dark atmosphere
26. 死霊の風
27. Doubt
28. 異形の情景
29. Enigma
30. 気魄一閃
31. 第一殺人事件
32. 第二殺人事件
33. 第三殺人事件
34. His investigation
35. 検屍
36. Dive into the accident
37. 追跡
38. Detectives are go!
39. 瞑想
40. Repeat & report
41. 事件発生
42. 禁断推理
43. 仮説
44. 神秘と狂乱の物語
45. Puzzler
46. 深層学習
47. Labyrinth
48. Initial X
49. ロンより証拠
50. Brain wave
51. 血は水より濃し
52. トトの決意（light edition）

### Titles in English

1. OVERTURE
2. ONE,TWO,THREE,FOUR,FOUR,THREE,TWO,ONE
3. DAILY ROUTINE
4. KILLING TIME
5. RON & TOTO
6. IDLE TALK
7. UNEVEN COMBINATION
8. CAST NOT YOUR PEARLS BEFORE SWINE.
9. HALF SHUFFLE BOOGIE
10. TWILIGHT
11. END-ALL
12. FOLLOW ME?
13. MY GOOD FRIEND
14. TOGETHER
15. ECCENTRIC MAN
16. DR. MOFU
17. JAPANESE TV SHOW
18. TO BE CONTINUED.
19. 1ST CONTACT
20. BLUE AMNESIA
21. SORROW
22. TOTO'S DETERMINATION
23. TOWARD TO THE SKY
24. UP AND DOWN
25. DARK ATMOSPHERE
26. GHOST WIND
27. DOUBT
28. EXTRAORDINARY SCENE
29. ENIGMA
30. A FLASH OF DRIVE
31. 1ST MURDER CASE
32. 2ND MURDER CASE
33. 3RD MURDER CASE
34. HIS INVESTIGATION
35. SLEEPING WITH THE DEAD BODY
36. DIVE INTO THE ACCIDENT
37. IN PURSUIT OF THE CRIMINAL
38. DETECTIVES ARE GO!
39. MEDITATION
40. REPEAT & REPORT
41. OUTBREAK
42. THE FORBIDDEN REASONING
43. HYPOTHESIS
44. TALES OF MYSTERY AND FRENZY
45. PUZZLER
46. DEEP LEARNING
47. LABYRINTH
48. INITIAL X
49. EVIDENCE OVER ARGUMENT
50. BRAIN WAVE
51. BLOOD IS THICKER THAN WATER.
52. TOTO'S DETERMINATION - LIGHT EDITION

## References

1. ↑ Soundtrack release — Official Ron Kamonohashi TV on Twitter
The Mystery of the Maison du Kamonohashi Pt. 1

**The Mystery of the Maison du Kamonohashi Pt. 1** (メゾン・ド・カモノハシの怪事件①, *Mezon Do Kamonohashi No Kai Jiken ①*) is the 117th chapter of the *Ron Kamonohashi: Deranged Detective* manga.

## Characters in Order of Appearance

* Amamiya
* Totomaru Isshiki
* Ron Kamonohashi
* Omito Kawasemi

## Trivia

* Though the Japanese title uses the same phrasing as always, MangaPlus translated the chapter title as "The Mystery of..." instead of the regular "The Case of..." Maison du Kamonohashi was also misspelled as "Maison **de** Kamonohashi."
The Case of the Island Observatory Murder Pt. 3 (episode)

## The Case of the Island Observatory Murder Pt. 3

**The Case of the Island Observatory Murder Pt. 3** (孤島天文台殺人事件【後編】, *Kotō tenmondai satsujin jiken [kōhen]*), or simply **The Case of the Observatory Murder Pt. 3**, is the ninth episode of the *Ron Kamonohashi: Deranged Detective* anime.

## Synopsis

Toto gathers the concerned parties and tells them the truth about the incident that was planted on Ron. There, the culprit's name is finally revealed. The culprits refutes his claims, but Toto uncovers the mysteries of the tricks one after another. The culprit gives up and tries to take their own life, but in the end, they reveal that this incident was a trap for Ron, hinting that there is a mastermind behind it.

Toto gathers everyone together and explains the truth behind the murders. With their name exposed, the culprit takes drastic measures not to be caught, but not before revealing that there's more to this incident than anyone imagined.

## Characters and cast

* **Ron Kamonohashi:** Yōhei Azakami
* **Totomaru Isshiki:** Junya Enoki
* **Takumi Jumonji:** Yōji Ueda
* **Minami Unno:** Nao Fujita
* **Eisaku Donzawa:** Anri Katsu
* **Princess Ori:** Amina Sato
* **Winter Moriarty:** Yumiri Hanamori
* **Mylo Moriarty:** Yoshitsugu Matsuoka
* **Forensics:** Yuuji Murai
* **Old policeman:** Shinji Nagano

## Gallery

### Episode stills

Toto and Ron listen to the culprit's confession.Toto charges forward to stop Ron.Ron vows that he will not forgive whoever framed him.The legendary M. Family.Winter calls Mylo.LondonThe headquarters of the M. Family.Mylo speaks about Ron.Ron is glad about Toto's answer.
### Others

Preview image【鴨乃橋ロンの禁断推理】事件現場（アフレコ）アフタートーク第6回【-阿座上洋平 -榎木淳弥】Talk video with Yōhei Azakami and Junya Enoki【鴨乃橋ロンの禁断推理】事件現場（アフレコ）アフタートーク番外編【-阿座上洋平 -八代拓】Special talk video with Azakami and Taku Yashiro
## References and notes

1. ↑ "E9 - The Case of the Observatory Murder (Part 3)" — Crunchyroll
2. ↑ 2.0 2.1 "Yoshitsugu Matsuoka, Yumiri Hanamori Join Cast of Ron Kamonohashi's Forbidden Deductions Anime" — Anime News Network
3. ↑ 3.0 3.1 Character Visual Release: Mylo and Winter — Official Ron Kamonohashi TV on Twitter

1. ↑ Translated from the Japanese description with DeepL Translator and Google Translate
Ron Kamonohashi: Deranged Detective Wiki:Requests for rights

This is the page where users can formally **request for special user rights**. For more information, see this page.

## Requirements

For a user to gain rights, several things must be considered, including:

* The user's history of contributions in the wiki, quality being weighed more importantly than quantity.
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* Familiarity with wiki policies, templates, wikitext, and general style or format of the wiki.
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## Procedure

Users may simply list themselves for a request for rights on this page, on the section below. Merely ***put in your username***, include a very ***brief statement*** on your dedication to the wiki then ***sign it*** with four tildes ~~~~, or simply click the signature button in Visual mode.

## Choosing

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2. Once approved, your edits will be evaluated and depending on your strengths, your position will be decided (eg. Your edits are mainly correcting bad-faith edits and vandalisms: you will become a rollback. If your edits consist of several, great contributions to the articles, and you also try to communicate with the other admins and users, we will make you an admin.)
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4. Only admins and bureaucrats may delete requests early at their discretion if the applicant is obviously unsuitable with no chance of succeeding. Other users may also request this by approaching other admins.

## Positions

* **Bureaucrat [Superintendent general]** — has the ability to give positions to other users; has all general admin rights, inclusive of rights of all other user groups
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*Please respect other users. Do not delete their entries from this list.*
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