ActionComedyMystery
Private Detective Hiroshi Inaba is an artificially-created being, formed by splicing the genes of both a human and a wolf, who gains information by tasting and examining people's hair, and pretty much has a hair fetish. He can transform into a more wolf-like form, and also gain special powers and perform different attacks depending on the type or color of hair he eats. Formerly employed by the police and partnered with an officer, he now runs his own private detective agency with the help of his sadistic, cross-dressing secretary Yuuta (often mistaken for a girl), and Kei (a "relatively" normal teenager working part-time at the office. Ogino, the officer formerly partnered with Hiroshi, also often helps out with cases. His arch-enemy is Don Valentino, an evil mastermind goat with a taste (literally) for money, and a variety of messed up but extremely devoted henchman, including gentleman samurai Laurence, who always wears a bag over his head. Most chapters are individual stories revolving around Hiroshi and his friends trying to arrest the Don, always failing miserably.
ActionMysteryDrama
Sasaki Rena is a beautiful woman with excellent memory and intelligence. She becomes a private detective and risks her life to chase down evil private detectives, because her younger sister was murdered by a stalker. The person that provided information to the stalker on her sister's location was a private detective. (Source: AsianWiki)
Shounen Ai
A collection of short stories: 1. VIP 2. Sunao de Wagamamana Ouji no Nozomu Mono 3. Natsu no Hi 4. Gitai
AdventureFantasyGame
ComedyFantasy
A cute and funny set of stories about two youkai rabbit girls, Reisen Udongein Inaba, Tewi Inaba, and an Exiled Lunar Princess, Kaguya Houraisan along with Reisen's Master, Erin Yagokoto, and their everyday life in Eientei. (Source: MU)
ComedyRomanceSlice of Life
A future where Takagi and Nishikata are married with their daughter, Chii.
In the city of Fuuto, criminals make use of USB-like devices called "Gaia Memories" to turn themselves into superpowered monsters known as "Dopants," wreaking havoc in the otherwise peaceful city. However, there are also heroes who utilize the Gaia Memories to fight these criminals, one of whom is the self-proclaimed, hard-boiled detective Shoutarou Hidari. With the help of his witty partner Philip, the two transform into Kamen Rider W—the legendary hero of Fuuto city. After the fall of Museum—the evil organisation responsible for many crimes in Fuuto—the production and distribution of Gaia Memories has halted. However, remnants of Gaia Memories still remain within society and are sold in the black market at high prices. Thus, the two heroes from Narumi Detective Agency are yet to have time to relax. Sights of Dopants still occur and the agency receives more and more clients who claim to experience supernatural phenomena. Regardless of the arduous nature of the task, Kamen Rider W promises that those who hurt Fuuto will inevitably count up their sins. [Written by MAL Rewrite]
ActionComedyMartial Arts
Odaka Youichirou is a number one problem child, and a violent delinquent. However, he also uses his skill with violence to solve problems at school, such as a girl's problem with a stalker or an issue with peeping tom pictures. However, he has now involved a new teacher, Tsukimoto-sensei, in his activities. (Source: MangaHelpers)
MysteryShounen
A new detective enlists the help of a young shoe fitter with a foot fetish to help solve crimes.
ComedyMysteryShounen Ai
It was the roaring 20's, and the country was Japan. Bluecat, or Aoneko, is a debonaire aristocrat with too much money and leisure time. Along with his servant boy Tigerman, he dabbles in private detective work much to the chagrin of the real police detective Mr. Bee-Prince (Hachiouji). Bluecat is handsome--and yes, he knows it--witty, polite, and popular among the rich. However, his deviant libido, as well as his own attractive nature, often land him in danger. (Source: MangaUpdates)
ComedyMysteryHorror
A pair of young aspiring mystery writers have weird incidents happen around them that need solving. Luckily for them, the Masked Detective inexplicably always shows up to help. (Source: Tokyopop)
MysteryPsychologicalSeinen
The implications of a man who unwittingly stumble upon a dead body when he breaks into a lady's room to steal her underwear.
MysteryDramaPsychological
MysterySeinen
Reiko can look into anyone's fridge, and read lots of information about the owner in its contents. She works as a caterer, giving her plenty of opportunities to peek into the fridges of others. Currently, she has an "assistant," who is actually a detective that wants to learn about her impressive skill. He goes with Reiko to her jobs, where she peeks into the fridges of her customers, often helping to make their lives better by using the information she learns. (Source: tethysdust)
MysteryPoliceSeinen
Slice of LifeSeinen
Taku Ryuumon is a detective who lives on the mountains immersed in nature with his loyal hunting dog Joe. But one day a person pay a visit to him, asking a favour.
ComedyMysteryShounen
MysteryJosei
Masaki Aiba identifies himself as "Kizoku" ("Aristocrat") and works as a private detective for a hobby. Nobody knows his age, address or anything about his family. The actual deductions and investigations are carried out by his employees including his butler, maid and chauffeur. He only has a good time talking to the women involved in the cases. Meanwhile, Aika Takatoku works as a private detective. She competes with the Aristocrat Detective to solve cases. (Source: Asianwiki)
Mystery
Solving a crime is not always easy as things aren't always the way it seems... neither are the detectives for that matter... (Source: MangaToshokan)
Twenty-five-year-old Kakushidate Yakusuke suffers from the fate of constantly stumbling into various crime scenes and ending up being the main suspect. His last resort: Okitegami Kyouko the "Quickest Detective." However, Kyouko suffers from a strange case of amnesia; whenever she falls asleep, she forgets everything that happened the previous day, making her solve the mysteries within one day.
MysteryDramaSchool
Kirika Hijiribashi is the Executive Committee Treasurer managing a high school Student Council budget of 800 million yen. She is also the only committee member with an additional title: Student Council Detective able to sniff out amazing solutions to bizarre cases. Hikage Makimura, who recently transferred into the high school, finds himself not only tricked into joining the Student Council, but is now assigned as her assistant. (Source: MU)
MysteryFantasySeinen
ComedyMysterySci-Fi
Shuuichi Inaba is a student of a special high school for young prodigies and one of the users of the newest and most popular application called 'Alice in Cyberland' - an app with an AI that enables its users to talk to them as with any other human. When some of the students of his high school start to get attacked by a mysterious culprit, Shuuichi is determined to find out who it is. In his investigation, he stumbles upon 'Alice' - a special kind of program, which, in return for helping him with the case, demands only to know something he would usually never tell anyone - his biggest and deepest secret. (Source: MU)
Kuroba You is a sadistic detective who enjoys nothing more than destroying his targets emotionally and psychologically through his deductive reasoning. Toiro Arata is a naive and slightly masochistic boy who gets duped by You into becoming his assistant, or slave. These two team up to become the "Black & White" detective, solving crimes and chasing after criminals. (Source: MangaHelpers)
MysteryDramaRomance
"There is no such thing as everlasting love." Being involved in a certain incident, Nonomura Tsukumo became Chiyoda Momose, aka the break up detective's assistant. "Break up detective" chooses the detective reasoning club's activity room as home base. The two's objective is to find out the truth behind their client's break up. Because of the break up detective's rumor spreading around school, more and more clients come to seek their aid. Solving the lovelorn mysteries, a youthfulness campus reasoning story. (Source: Back cover of the novel)
ActionSeinen
Hotel detective Doll is assigned to protect the president of the United States during his stay at the luxurious Sunrise Hotel. While assisting a hotel guest who has fallen ill, she discovers and kills an assassin, but something tells her the danger isn't over yet... "Before the President's Arrival" plus four more stories! (Source: Jmanga)
ComedySeinen
Tsumaki is a private investigator of the “Aaah Detective Agency” that is obviously listed on the first line of the phone book. He has a great love toward investigation, and aims to solve new cases with his keen and original insight, yet always tends to fail miserably. No wonder he’s pinched to pay his rent… With the support of his colleagues, powerful action, and elaborated costumes, he tries to solve crimes in his original ways! (Source: Baka-Updates Manga)
ActionMystery
A collection of gekiga stories from various authors from the days of kashihon manga. Considered to be an extremely influential series in the evolution of manga, being one of the first of the gekiga genre. (Source: MU)
Comedy
ComedySlice of LifePolice
Chronicles the daily life of a policeman extremely quiet and reasonable ... too much for their chosen profession. Of course all his superiors just climbing the walls with its tranquility.
ComedyRomanceSchool
ComedySchoolSlice of Life
Yuusuke Shiratama is a 15-year-old in his first year of high school. Aoi Suzukawa is excited to start her high school life, but her classmate is a cat?! Due to some mutation, Shiratama has the same intelligence as any human. He was even brought up with a normal human family and is the world's first cat to have human rights. In-spite of the circumstances surrounding Shiratama, Aoi becomes extremely interested in him! Shiratama, the sensitive feline high school student, will soon have his life turned into a school comedy!! (Source: Shueisha) Included one-shot: Volume 12: Kuroneko to Kuro no Hibon
MysteryHorrorRomance
Shinrei Tantei Yakumo tells a story of a college student, Saitou Yakumo, who was born with different eye colors. His red left eye gives him the special ability to see ghosts and spirits. He believes ghosts and spirits are bound to earth because of a certain 'cause' and simply eliminating that 'cause' will let those spirits will rest in peace. Being asked for help by Ozawa Haruka, they begin the investigation together. (Source: Fateful Encounters)
In a forgotten town known as the old capital of Tokyo, strange and mysterious crimes are progressively occuring. These supernatural occurances are beyond comprehension and bring fear and terror to the people. Only one person is not intimidated by the evil underlying these occurances and is willing to challenge them: Hyuga Mayuki, a young boy detective who holds a special insight power that allows him to uncover the real truth behind these occurances.
ComedyMysteryJosei
The story follows three mystery-solving male models: Maneki Kei, who has a strange tendency to be the first to discover bodies, mystery nerd Suou Itsuki, and flirtatious Simon Touma. (Source: ANN) Included one-shot: Volume 6: Satou-ke Kakun!
ComedyMysteryDrama
Detective School Q is the story of a group of young students from Class Q of Dan Detective School (DDS), a prestigious and renowned detective academy founded by Morihiko Dan, the most famous detective in Japan, and the adventures and mysteries they unfold and solve together. They eventually work against Pluto, a mysterious organization which creates almost fool-proof plans that only a handful of detectives can solve. (Source: Wikipedia)
ActionGender Bender
This is the story of two homosexual detectives, one androphobe, the other gynophobe who get together to fight murder, rape and crimes which are rampant in the city. (mangaupdates.com)
MysteryRomanceJosei
Romance
"Auntie Yuriko's run away to be with her lover!? Could this be the chance I've been waiting for!?" Misato plans to use this opportunity to get close to her beloved uncle, until her ulterior motives are discovered by gruff detective Kazuma Saeki, who has been hired to work on the case. He treats her like a kid and ruins all her plans... even going so far as XXX...!! Will Misato find a clue to unravel the mystery of adult romance!?
MysteryDramaShounen Ai
What is it that the detective encounters when investigating a hot spring town that has seen better days...? A curious story begins when he encounters a mysterious exotic dancer... (Source: MU)
HistoricalRomanceJosei
Rudy is an undercover detective, specializing on stalking a certain noble. When he and Elise, his friend, were kids, he quickly agreed to become her "detective", on the assumption that detectives were people being relied on. How right he was... because Elise’s seeks for his assistance in almost everything...and her orders mainly involve investigating Albert, who is Rudy’s older brother! Albert is good looking, skillful, and wealthy. A lot of women fall for him, including Elise; but not everyone is the same as what they appear. There are rumors about the eldest son of a wealthy family sneaking out and having fun at night. Albert seems to be hiding something and it’s up to Rudy to find out what it is! (Source: MU)
AdventureComedyMystery
When she was small, Fuko experienced paranormal activity first hand. For a moment she was transported to some place she'd never known, and there she met a mysterious boy and saw a shining object flying overhead. They ran away together and then Fuko was transported back to her old place again. Fuko is now 13 years old and while she has never told anyone about her experience she is now a strong believer in the existance of the paranormal. Because of this, she joined the school's "Mystery Investigation Club", a club for those interested in paranormal activity. The club, however, is usually quiet and nothing interesting is occurs... until one day when a new student, Itsuji, moves to her school.
ComedyMysterySeinen
ActionAdventureMystery
Persona 4 spin-off set one year after the end of Persona 4, Naoto is asked to investigate the mysterious disappearances of two Yagakoro students by an old detective friend, Touko Aoi. There, she is partnered with Sousei Kurogami, a mechanical detective and a polar opposite to her in terms of personality and methodology. In their first encounter, she awakens to a new persona Amatsu Mikaboshi, which enables her to amplify Sousei's persona ability, Tsukuyomi. Together with Sousei, she discovers the Midnight Site, an anonymous site where judgment is passed on others by five judges named after figures in Japanese mythology—Uzume, Sarutahiko, Omoikane, Tajikarao, and Futotama. However, it quickly becomes apparent that this case and another under Touko's supervision are related when one of the five judges turns up dead with ballistics pointing to a missing police officer's gun. Naoto and the others must discover the identity of the other judges to protect them and find out the culprit who seeks to kill them.
MysterySupernaturalSeinen
Satoru earned a name as a genius boy detective, and the police rely on his reasoning skills. His secret, though, is that he is able to see the ghosts of the dead, and they provide him with the hints that lead him to solving cases. Now that he's a teenager, he has attracted a strange "ghost" named Kako, who claims that she is actually a god. She goads him into taking more mysterious cases, in the search for a vengeful spirit that wants to kill humans. Now they are a team, where he solves the cases and she purifies the vengeful spirits! (Source: MangaHelpers)
ActionDemonsFantasy
Follows the case files of weapons expert Kiryuuin Luna & psychic Kamizono Saiko, detectives for hire who specialize in cases that involve the supernatural.
Rock's manga debut as a young boy detective with shiny dark hair named after Japanese pronunciation of Sherlock Holmes.
Shoujo
MysteryShounenSupernatural
The Demon Neuro has a raging hunger for "enigmas." Being dissatisfied with his current regime in hell, he's come into the mortal realm in order to satiate his ever-growing appetite. The murder case of a young girl's father seems to be sufficiently enticing for the Demon's needs... But what else might happen between these two? (Source: aerandria.net) Included one-shot: Volume 23: Rikon Choutei (Divorce Conciliation)
This man has solved cases even the great western detectives gave up on. This time, he faces a strange murder in a room from which no one can enter or leave...
MysterySchoolJosei
ComedyMysterySchool
Takes place two years after the events of Tantei Gakuen Q.
ComedyParodyShounen
MysteryShoujoSupernatural
Oz Williams is a kid genius who has a special power when it comes to helping the dead get revenge! 19th century London is the place where kid detective Oz Williams and his unusual assistant live. Oz helps solve cases that the police have trouble with and in the end, the murderer always ends up killing themselves due to a mysterious power Oz shows them in order to take revenge for the dead. Oz has the ability to hear the dead and in the form of a Jack-o-lantern, the dead take their revenge on their killer. Oz loves sweets and always wears a Halloween costume all year round, so that's why he is known as the Halloween detective! (Source: LuffyNoTomo Translations)
The manga's story is an homage to Edogawa Rampo's fictional character Akechi Kogorou. The mystery centers around Mayumi Hanazaki, a middle-school girl who used to live with her aunt and uncle until a mysterious person mercilessly killed both. Now, thanks to an unusual incident, Mayumi relies upon the spirit of the legendary detective Kogorou Akechi to solve case. (Source: ANN)
ComedyMysteryRomance
One night, Alice enters her master's bedroom to find him gone. After waiting 3 days with no word from him she finds a number for a detective agency. She later meets Chocola from the agency and together soon find their masters. This 4-koma revolves around the activities of these two girls and the detective agency, including artificial humans, vampire hunters, romcom and a bit of gender confusion.
MysteryVampireSeinen
Aoki Juurou finds murder victims a little too often, causing some cops to suspect him of being involved. At the opening of this story, he discovers the body of the idol Komori Erie by following the strong scent of her blood. After dealing with the police, Aoki takes the details of the case to the mysterious shut-in Hisato. If Hisato can solve the case, he can take justice into his own hands... (Source: MU)
MysteryPolicePsychological
The main character is a detective, Kazuhiko Amamiya, suffering from multiple personality disorder. Starting out as a violent detective series with a twist (the twist being the variant personalities that take over Detective Amamiya at various intervals), the series evolves into an exceptionally complex and involved sci-fi conspiracy story.
A freelance detective makes trades with his clients instead of taking fees.
MysteryShoujo
The "Tokyo Gourmet Club" meets once a month in order to eat delicious foods. During one of these sessions, Inspector Katoono receives a phone call: the corpses of a man and woman were found in the same hotel. The cause of death is poisoning. Using the information and connections within the hotel that Inspector Akechi gives him, and involving Ichigo, he sets off on this investigation. (Source: MU)
MysterySupernatural
Series of Shinrei Tantei Yakumo side stories.
Yaoi
The outstanding boys' high school student Miki Masami's not-so-outstanding part-time job is at the somewhat suspicious detective agency, "Tsukumo's Detective Office". His superiors, Jinnai Hajime and Kiuchi Kan, are very cool, but considerably eccentric individuals. Though he finds the days of Jinnai calling him the "destined child" troubling, what concerns Miki more is Jinnai and Kiuchi's overly intimate relationship...! The love triangle comedy of the puzzled detectives ♥, followed by the compilation of "Koibito Kankei" (A Lovers Relationship) with the concerning Kiuchi and a brute glasses-wearing boy. (Source: Loveless)
MysterySchool
ActionComedyYaoi
Ryuu and Shigure are detectives, but times are tight and they're both working in a gay bar to make ends meet. Though they're lovers, they get interrupted a lot. Will life ever calm down for these two?
MysteryDrama
There's a new wheel-chair bound student at school who has returned after an illness, and she immediately kisses Tsuzuki Ui, who she calls "Rei-kun." He soon deduces that she is a daughter of a wealthy family, and a person he once beat at an internet murder mystery game. She is apparently fixated on him, since he was the only one who ever beat her, and she has now come to see him in person. Her plan is to have a real-life murder mystery game, and her current focus is on the supposed suicide of Tsuzuki's father. For some reason, she suspects his little sister Haruka... (Source: MangaHelpers)
At the old and abandoned school campus, some students committed suicide in the past, leaving behind a blood curse. A student, dubbed 'Shinigami/ The God of Death' by other students, went exploring the old campus with his friends. Halfway, someone dropped their flashlight and a dismembered woman's body is discovered. (Source: MU)
Shishigami Takashi has, for a long time, met with murder cases wherever he goes, hence the nickname of "Shinigami" detective.
MysteryFantasy
ActionMysterySupernatural
ActionComedyFantasy
Jack O’Brien is a penniless detective who runs his own agency, together with his partner, Eileen. One day, they are called to investigate the truth behind a terrorist attack at a bridge in the city.
MysterySchoolShoujo
Aya Tachibana is a sixth-grader who frets and obsesses over friends, family, grades, and more. One day, she joins the "Tantei Team KZ" with four very idiosyncratic boys she met at cram school. There is the glib and attention-grabbing leader Kazuomi Wakatake, the mysterious "expert of personal relationships" Takakazu Kuroki, the smart and stoic math genius Kazunori Uesugi, and the sweet-hearted Kazuhiko Kozuka, who is good at social matters and science. Aya finds her place among them as the "language expert." "Tantei Team KZ" gets involved in modern-day cases, and even if they bicker from time to time, they collaborate by pooling each of their talents and skills to solve these cases. (Source: ANN)
The sound, the smell, the taste, the texture, the temperature, the weight, the pain. A detective who can see things that are not visible to the naked eye, this is the story of Higurashi Tabito's search for love.
Nagumo Keiichirou is a detective following old-school methods. One day a high school girl appeared before his eyes in his Nagumo Detective Agency telling him she wants to work with him. (Source: MU)
MysterySchoolShounen
MysterySchoolSci-Fi
When even a tough dude like his school pal Toji is getting menaced by gangsters, a nice guy like Shinji Ikari feels obliged to seek out the local private eye, Ryoji Kaji, and his striking young assistant, Kaworu Nagisa. Somehow, though, Shinji gets drafted into solving the case himself, with Kaworu's help—although Kaworu quickly proves to be a mystery of his own... (Source: Dark Horse)
A manga adaptation of UN-GO that differs slightly from its anime counterpart.
Mikuriya Jin leads Nakajima Mamoru and some gangsters in solving troubles for their clients.
The story centers on Kiyoshi Mitarai, a genius detective famous for having solved the Umezawa Incident. The series follows Mitarai and his assistant, Kazumi Ishioka, as they solve a wide array of mind-boggling mysteries. (Source: ANN)
MysteryHorrorShoujo
Based on the novel by Kaminaga Manabu. Shinrei Tantei Yakumo (Psychic Detective Yakumo) tells a story about a college student, Saitou Yakumo, who was born with different eye colors. His red left eye gave him the special ability to see ghosts and spirits. He believes ghosts and spirits are bound to earth because of a certain 'cause' and simply by eliminating that 'cause', those spirits will rest in peace. Being asked for help by Ozawa Haruka, together they began the investigation. (Source: Fateful Encounters) Included one-shot: Volume 1: Mail x Tomodachi
The story follows Detective Xeno, who after being found collapsed at the side of a road covered in blood and was taken to a hospital the first thing he said upon awakening was solving a murder that happened in the hospital! Xeno himself has no memory of who he is or where he came from, but after that huge incident and after leaving the hospital, he opened up a detective agency and in just a year he solved some high-profile cases.
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