Rumi Wakasa

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Rumi Wakasa

Rumi Wakasa Profile.png

Japanese name: 若狭留美
(Wakasa Rumi)
Age: 37
Gender: Female
Date of birth: unknown
Relatives: unknown
Occupation: Teitan Elementary School deputy homeroom teacher
First appearance: Manga: File 966
Anime: Episode 889
Appearances: Chapters: 26
Episodes: 13
Movies: 0
OVAs: 0
Specials: 0
Openings: 3
Closings: 1
Keyhole number: Volume 91
Japanese voice: Fumi Hirano

Rumi Wakasa (若狭留美 Wakasa Rumi?) is a character in the manga and anime franchise Detective Conan.


Due to an increase in the number of transfer students to Teitan Elementary School over the past year, they have hired new teachers. Rumi is the new deputy homeroom teacher for class 1-B.


Her personality seems to be that of a well meaning but really clumsy and incapable teacher. She approached the Detective Boys on the grounds that she is scared of the old warehouse at the school and needed them to come with her. However, once she was out of sight of the Detective Boys, her personality changed dramatically to that of a skilled fighter with a scary face, where she rendered three assailants unconscious with a broom in what could have been seconds.


She is very similar to Terumi Arai from Tell Me A Lie.


Martial arts

While well-hidden, she is a skilled fighter, much stronger than Bourbon. So coordinated and precise, she can seamlessly create the illusion that her taking down foes is a mixture of clumsiness and pure luck. It is still unknown what style she uses, but she has shown proficiency in jojutsu and elbow strikes.

Keen observation and deduction skills

She has also shown her reasoning and deductive abilities, giving hints to Conan to solve a case. She may also be aware of Conan's peculiar use of gadgets as she has witnessed Conan tranquilizing Yamamura, and using the voice changer bow tie to perform a sleeping deduction show. Conan mentioned using his tranquilizer watch to her on her first appearance.


She is shown to be able to paint a life-sized tiger in a realistic style in one afternoon, and is able to easily fix a smudged painting.


Plot overview

The Old Warehouse of Teitan Elementary School (Manga: 966-968, Anime: 889-890)

Rumi about to attack the robbers.

Sumiko Kobayashi introduces her class to the new deputy homeroom teacher, Rumi Wakasa. She appears to be a clumsy, shy and fearful person. Rumi approaches the Detective Boys for their help retrieving quicklime from the old warehouse in the school yard which causes them to come across a dead body. Over the course of the case Rumi uses her clumsiness to give hints to Conan on how to solve the case. Once she was out of their sight, her personality completely changed and she beat up a few robbers.

Rumi Wakasa's Neighbor Murder Case (Manga: 978-980, Anime: 896-897)

Rumi overhears an argument between her neighbor and his girlfriend, as she was leaving for school, and smiles. Later she accidently destroys a picture that was going to be used for a school play and she says that she will redraw it. Conan and the detective boys accompanied her to help. After they finish, Rumi treats them to dinner. But when they hear loud sounds from the neighbor, they goes over to check it out and finds a dead body and an unconscious man. Later back in Rumi's apartment, Conan finds a receipt that may prove that she knew the case would happen before hand and invited them there on purpose. Later Rumi incapacitates the culprit under the guise of falling over. The news crews outside happen to take a picture and Ayumi gives them Rumi's name. Hyoue Kuroda is shown reading the news article on his phone. Kanenori Wakita is shown reading a newspaper, but the article is not shown to us.

Burning Tent Murder Case (Manga: 987-989, Anime: 909-910)

Rumi takes the Detective Boys camping. Conan is suspicious of her and thought of strange things that he noticed in her present. When they approach a group cooking curry over a fire near by, one of them mentions that he has an injured eye and nearly had to get a prosthetic eye. Rumi clenches up, and Conan notices her gripping something in her pocket. A little bit later one of the other campers is burned alive inside his own tent. Kuroda emerges from an adjacent tent and asks her whether the police should be called. However Rumi is standing in stunned silence, staring forward. When she snaps back to reality, Haibara seems to notice that Rumi can't see out of her right eye. Conan starts to wonder if Rumi is clumsy on purpose or that she cannot see so she is clumsy. When Kuroda seems to know the order that everyone introduced themselves in, despite originally claiming to have had earplugs in while sleeping. Rumi accuses him of spying on someone. Rumi has the Detective Boys build an acorn balance toy, which leads to the solution of the case. After Conan and Kuroda uncover the culprit, the culprit uses Ayumi as a hostage, Rumi manages to distract him long enough for Kuroda and Yuminaga to arrest him. Kuroda showed interest in the intimidating words that Rumi used to distract him. On the other hand, Conan becomes more suspicious of Rumi, and notices a strange object in her back pocket that has a shape similar to that of a Shogi piece.

Crimson School Trip Case (Manga: 1005, Anime: 928)

Rumi with scars.

At the end of the case, news of Shinichi being one of the detectives that had solved the case spread to the internet. Both Kuroda and Wakita were shown seeing the information on their phones. However, Rumi was shown sitting in the dark looking at the APTX victims list on her laptop, with a smirk on her face. The names Shinichi Kudo and Kohji Haneda appear to be highlighted. Additionally this is the first time we see her without a shirt on and she has scars on her upper arms as well as her back.

Missing Maria Higashio Case (Manga: 1006-1008, Anime: 941-942)

Rumi makes an appearance in this case, asking Haibara about Shinichi and if Haibara has met Shinichi before. Later, a shogi piece that looks like promoted bishop is lying next to her computer, while she reads a blog.

Edible Wild Plants Collecting Case (Manga: 1032-1034, Anime: 1011-1012)

Rumi and Kobayashi take the Detective Boys out to collect edible plants. As they do so, Rumi detects the scent of blood blown by the wind and immediately thinks about Kohji's death. At the mention of good luck charms, Rumi remembers back to when Kohji said, "With the watchtower bishop, you can be sure of making a good move", while holding up a shogi bishop. Then he says, "So you/they're going to kill me despite that?" She then remembers him dead, with some sort of blood pouring out of his mouth, and she calls him a "foolish person", while pressing down on her right eye and crouching down on the ground. Conan sees her pressing down on her right eye and seems to connect it to an eye disorder. Rumi sees Conan tranquilizing Yamamura to make his deduction and gives a slight smirk. When Ayumi gives a 4-leaf clover to Rumi, saying that because Rumi is clumsy she needs good fortune, Rumi waits for the Detective Boys in front of her to look away, except Conan who is standing behind her looking at her, and throws away the 4-leaf clover. Conan notices her doing this and appears angry at her for it (or cognizant why she does not feel she needs it) as Rumi's face is in shadow.

Trapped at Hatoyama Farm (Manga: 1051-1054, Anime: 1053-1054)

Rumi and Kobayashi take the Detective Boys out to Hatoyama Farm to collect chicken. During the trip, she mentioned the words, Karasu being black, sly and a conspirator, causing Conan suspicious of her as she might personally know Renya Karasuma as Rum candidate. They meet up with Amuro who is also going to the farm with another purpose. She seems to have a strange glare upon hearing Amuro is a detective.

Later, they receive a call from the Detective Boys Badge, knowing that Conan, Ayumi, Mitsuhiko, Kobayashi, and Amuro gets trapped inside the farmhouse's cellar as the farm's owner brother uses Ayumi as a hostage and calling them for the police. However, they are unable to contact police by their phone. Also, Rumi notice the shogi piece which has been kept on her back pocket is missing and realize it has been picked by Amuro according to Genta.

After Conan are rescued from the cellar, Rumi use the badge as a bait to lure Amuro back into the cellar and knocked him out in order to retrieve the shogi piece. Rumi mentioned to Amuro that she lost her grip and let go for the trapped door cutting all the light, which cause him missed a step on the stairs.

Kogoro in a Dilemma (Manga: 1057, Anime: TBD)

Amuro is seen have a picture of Rumi which is taken from the preview case. He suspects that it was Rumi who attacked him to take the shogi pieces that he took earlier.

Akemi Miyano's Time Capsule (Manga: 1070-1072, Anime: TBD)

Rumi, Kobayashi, and the Detective Boys meet the Teitan Elementary School alumni as they are holding a reunion party. When one of them mention Akemi Miyano was also attended in the school before, he mistaken Haibara as Shiho Miyano, her younger sister which he seen before. As Conan and Haibara whispering about Akemi, Rumi suspects that Haibara is Sherry in a shrunken state, whom betray the Black Organization for the research of APTX 4869. When Conan rush outside the classroom to find any suspicious person passed by due to someone triggered Haibara's anxiety, Rumi witnesses Wakita leaving as he delivered the sushi.

Beach House Murder Case (Manga: 1097-1099, Anime: TBD)

Non-canon plot overview

The Mini Patrol Car Police's Big Chase (Anime: 918)

Genta gets kidnapped at an eel vending fair and the Detective Boys, without Haibara, run after the kidnappers' car and embark Yumi and Naeko's car to chase them. After losing track of them, Conan remembered who the kidnappers were and remembered they used signals at the fair so they try to figure out what they tried to communicate. Then, Mitsuhiko remembered the burning tent case and the reference to the counting system. A flashback of Haibara and Rumi's leg was shown.

Relationships analysis

Conan Edogawa, Ai Haibara, and Detective Boys

Conan, Haibara, the Detective Boys, Kobayashi, Wakasa, and Uematsu.

Rumi is the new deputy homeroom teacher for Conan Edogawa, Ai Haibara, and the Detective Boys' class. She has approached them directly twice to lead them to the warehouse of the school that a robber group had used. Rumi is aware of three of Professor Agasa's gadgets given to the Detective Boys: the flashlight watch, the detective badge, and the tranquilizer dart.

Among the Detective Boys, Rumi shows special interest in Conan for unknown reasons. In the old warehouse case, Rumi was only paying attention to Conan and purposely uses clumsiness in order to give Conan the necessary hints to solve the case. When a murder case occured in her apartment, Conan found a receipt that has that day's morning and noticed she has bought additional plates and mugs. Conan eventually realized the reason behinds his Sensei's actions. Rumi sensed a murder might occur in her apartment and was from the very beginning planning to invite the Detective Boys, especially Conan so he would become involved in the case. It seems Rumi is somehow testing Conan's intelligence and skills for unknown reasons.

Rumi at one point seems to trigger Haibara's skill at detecting Black Organization members, but Ai Haibara later tells Conan that she likes Rumi and wants to hear nothing bad said about her. Conan becomes increasingly distrustful of Rumi as time goes on, being reluctant to use his tranquilizer dart in front of her. So in one case, he leads Yamamura, who is to play the role of the sleeping detective here, to a tree to try to evade Rumi's scrutiny. Regardless, she still sees him use the tranquilizer dart on Yamamura and smirks. At one point, Conan notices Rumi pressing down on her right eye and seems to connect it to an eye disorder. Conan sees Rumi throwing away the 4-leaf clover Ayumi gave her and appears angry at her for it.

Sumiko Kobayashi

Sumiko Kobayashi is her junior superior as homeroom teacher.

Ryujiro Uematsu

Ryujiro Uematsu is the headmaster of her new school.

Hyoue Kuroda

Hyoue Kuroda seems to have some knowledge about her. When he heard that she went camping with the Detective Boys, he comments that camping was something that she wouldn't do.

Kohji Haneda

It's hinted that there is a mysterious relationship between Kohji Haneda and her. She carries the shogi bishop, Kohji's good luck charm, which was missing at the crime scene of the murder, hinting that Rumi might be related to that case.

She has memories of either talking to Haneda or at least being in the same room as him before he was killed. In her flashback to seeing him and his dead body, she thought of him as a "foolish person". Her memory of his dead body has what appears to be blood or some other fluid coming out of his mouth.

Name origin

Gosho Aoyama claims to have named Rumi after Rumiko Takahashi, the author of the manga Urusei Yatsura, whom heroine Lum Invader is performed by her voice actress in the anime.


Photo of Asaka.

Since Kanenori Wakita was revealed as Rum, it is very probable that she is Asaka, the missing bodyguard of Amanda Hughes.


  • Her role in the series is just like Fuko, the mysterious woman-Yaiba in the children's show Kamen Yaiba.[1]

In other languages

Language Given Name Family Name
Flag of Japan Japanese 留美 Rumi 若狭 Wakasa
Flag of US English Rumi Wakasa
Flag of Thailand Thai รูมิ วาคาสะ

See also


  1. ^ Manga volume 91, file 9; anime episode 890.
Rum arc topics
Main interest Renya KarasumaRumCase from 17 years ago
Potential suspects Hyoue KurodaRumi WakasaKanenori Wakita
Connections Kohji HanedaAsakaAmanda HughesTsutomu Akai
Related Articles APTX 4869APTX 4869 Victim listRum arc timeline
Cases of interest The Scarlet ReturnThree First DiscoverersJust Like a 17 Years Old Crime SceneSoul Detective Murder CaseThe Stage of BetrayalMystery of the Burning TentSearch for Maria-chan!The 36-Cell Perfect GameThe Spark That Fell on the RanchYusaku Kudo's TV Show CaseFBI Serial Murder Case
Main Characters
Protagonists Shinichi KudoConan EdogawaRan MouriKogoro Mouri
Detective Boys Ai HaibaraAyumi YoshidaMitsuhiko TsuburayaGenta Kojima
Family & Friends Hiroshi AgasaSonoko SuzukiEri KisakiYusaku KudoYukiko KudoHeiji HattoriKazuha ToyamaYoko OkinoSumiko KobayashiTomoaki AraideMakoto KyogokuShizuka HattoriJirokichi SuzukiEisuke HondouAzusa EnomotoSubaru OkiyaMasumi SeraShukichi HanedaSakurako Yonehara
Tokyo Metropolitan Police District Juzo MegureWataru TakagiMiwako SatoNinzaburo ShiratoriYumi MiyamotoKazunobu ChibaNaeko MiikeKiyonaga MatsumotoInspector YuminagaShintaro ChakiHyoue Kuroda
Osaka Police District Heizo HattoriGinshiro ToyamaGoro Otaki
Nagano Police District Kansuke YamatoYui UeharaTaka'aki Morofushi
Other police districts Sango YokomizoMisao YamamuraJugo YokomizoFumimaro Ayanokoji
NPA and Public Security Bureau Rei Furuya (Bourbon)Hiromitsu MorofushiYuya Kazami
FBI Shuichi AkaiJodie StarlingJames BlackAndre Camel
CIA Hidemi Hondou (Kir)Ethan Hondou
MI6 Mary SeraTsutomu Akai
Black Organization The BossRumGinVodkaVermouthChiantiKornShiho MiyanoAkemi MiyanoElena MiyanoAtsushi MiyanoTequilaPiscoCalvadosRikumichi KusudaKi'ichiro Numabuchi
Magic Kaito Kaito KurobaKaitou KidAoko NakamoriGinzo NakamoriToichi KurobaChikage KurobaKonosuke JiiKeiko MomoiAkako KoizumiSaguru HakubaSnakeRose (OVA only) • Saguru's HousekeeperSpider (TV special only)
Others "The Criminal"Hideo AkagiRyusuke HigoTakahiro SanadaScar AkaiKohji HanedaRumi WakasaMomiji OokaMuga IoriKamen YaibaGomeraNight BaronDetective Samonji
Detective Boys
Members Conan EdogawaAi HaibaraAyumi YoshidaMitsuhiko TsuburayaGenta Kojima
Guardians Hiroshi AgasaSumiko KobayashiRumi Wakasa
Gadgets Detective Boys BadgeWristwatch Flashlight