Ito, Natsumi

During the 1930s, a period of rampant shifts is reshaping Japan's societal structure. Mitsuko Hoshino is a prime example of such change, being the first female detective to ever exist in the country. Despite receiving back-handed compliments on a daily basis regarding her gender and profession, Mitsuko would not change her job for anything in the world and strives to be the best at the Ginza Detective Bureau.

At a cafe, Mitsuko meets a handsome young waiter named Saku Yoshida, who requests help to find the owner of a shoe he found. After handling the case, Mitsuko is shocked to find out that Saku has not only been cast off by his wealthy family, but the college student is also now employed by the bureau to be Mitsuko's assistant! While their relationship slowly blossoms, the duo is tasked with solving mysteries side by side in these ever-changing times.

[Written by MAL Rewrite]

Kimi wa Nazotoki no Ma Chérie

My Dear Detective: Mitsuko's Case Files

きみは謎解きのマシェリ

Maijou, Outarou

Kodama, Yuuki

When I open my eyes, I find myself in an unfamiliar car, in an unfamiliar town, in front of the on-ramp to an unfamiliar highway. Before I can process any of this, I see the fiery explosions of multiple car crashes in the distance, and without thinking, I stomp on the accelerator and race toward the scene. I soon find that I’ve driven straight into hell at full speed with no brakes, just like everyone around me...! In the midst of this insanity, I discover the corpse of a girl, and suddenly I know—I am the brilliant detective. And I must solve the mystery of her death.

(Souce: Yen Press)

Id:Invaded: #Brake-Broken

ID:Invaded #Brake-Broken

ID:INVADED #BRAKE-BROKEN

Kiyohara, Hiro

Ayatsuji, Yukito

The members of a particular university's Mystery Club travel to a ten-sided house on a remote island...which just happens to have been the scene of a gristly, and unsolved, mass murder. Armed with details of the murder and keys to the property, they set out to dig deeper...but can they trust the "facts" of the case? And moreover...can they trust each other?

(Source: Kodansha USA)

Jukkakukan no Satsujin

The Decagon House Murders

十角館の殺人

Kibayashi, Shin

Satou, Fumiya

This is the sequel to the popular Kindaichi Shounen no Jikenbo franchise, set 20 years after the original version.

Hajime is no longer a student detective, but is a poor office worker who has to deal with the daily pains of adulthood. No longer wanting to solve cases anymore, he keeps his head down and tries to go about his daily work as quietly as possible.

But crime never takes a break, and it isn't long before Kindaichi gets dragged into cases that occur around him. Starting off the new series, we revisit Uta Island, for the fourth edition of the Opera House Murder Case, where the Phantom of the Opera is planning a bloody revenge.

(Source: MU)

Kindaichi 37-sai no Jikenbo

金田一37歳の事件簿

Kanzaki, Yuuya

Saitou Yuuichi, a young man without prospects, decides to kill himself at the turn of the year. However, a fateful encounter with a stranger named Mitsumune Sakutarou, who is his polar opposite, changes Yuuichi's future in a way he could never have imagined.

(Source: Death Toll)

Change the World: Kyou kara Satsujinki

Change the World: Bloodthirsty Killer from Today

チェンジザワールド―今日から殺人鬼―

Sawaragi, Shinichi

Gasuyama, Tank

Forty-year-old detective Eiji Kirisame has found maybe the strangest witness of his life: a silent high school girl named Tsugumi Kuchinashi who was at the scene of the crime. Her statements mostly consist of shoddy doodles on a drawing pad, but Eiji is no stranger to piecing together the truth from limited evidence. He'll take every page seriously if it might help solve the case. But why does the last page say... "Will you marry me?!"

(Source: Yen Press)

Pen to Wappa to Jijitsukon

A Pen, Handcuffs, and a Common-Law Marriage

ペンと手錠〈ワッパ〉と事実婚

Tsutsui, Tetsuya

In a village affected by rural depopulation, a grower named Keita creates a new fig species that gets recommended by a web celebrity. The local economy starts to pick up thanks to media exposure, which gives Keita hope for the local school to reopen, in order to convince his wife to come back with their daughter.

Yet the daily life in this peaceful village is disturbed by the arrival of a stranger, Suzuki Mutsuo, seemingly seeking for employment. Keita doesn't trust the sly man, and his doubts are confirmed when his best friend informs him that he has recognized the stranger: sentenced several years ago for a case of harassment and murder, he is a criminal fresh out of prison!

Noise

ノイズ

Kisaragi, Yoshinori

Kikuishi, Mareho

In an alternate 2023, the Your Forma, a miraculous "smart thread" technology initially developed to treat a massive outbreak of viral encephalitis, has become an integral part of daily life. But these convenient devices come with an invasive drawback—they record every sight, sound, and even emotion their users experience.

For electronic investigator Echika Hieda, diving into peoples' memories via the Your Forma and hunting for evidence to solve the toughest crimes is all part of a day's work. The problem is, she's so good at what she does that her assistants literally fry their brains trying to keep up with her. After putting one too many aides in the hospital, the top brass finally furnish Echika with a partner on her level, a brilliant yet cheeky android named Harold Lucraft. Does this unlikely duo have what it takes to resolve their mutual suspicions and avert a deadly technological infection from sweeping across the globe before it's too late?

(Source: Yen Press)

Your Forma

ユア・フォルマ

Asagiri, Kafka

iyutani

Over a decade before the events of the manga series, a chance encounter leads professional bodyguard Yukichi Fukuzawa to begrudgingly take an arrogant boy genius named Ranpo Edogawa under his wing. Their first job brings them to a local theater on high alert after receiving a bizarre death threat-a challenge that will require both Ranpo's brains and Fukuzawa's experience. The aftermath spurs Fukuzawa to establish the Armed Detective Agency, an organization that takes on dangerous jobs even the police won't handle!

(Source: Yen Press)

Bungou Stray Dogs: Tanteisha Setsuritsu Hiwa

Bungo Stray Dogs: The Untold Origins of the Detective Agency

文豪ストレイドッグス 探偵社設立秘話

Tabe, Koji

Waruhame: Maruhi Sennyuu Sousakan Agasa

ワルハメ～マル秘潜入捜査官アガサ～

Iguchi, Kon

Nakamura, Yuuji

Crime is ever-rising, a fact that police officer Shiro Isogai lives with every day. After the brutal murder of his fiancée, Isogai has been working tirelessly to find the killer. Suddenly, a "mysterious informant" begins popping up, helping the police locate serial killers one after another. Isogai knows this could be his chance for closure and decides his only hope is to team up with this person. But when it comes time to meet the secretive ally, he's surprised to be face-to-face with a young woman, Kuroi Hinata. Teaming up with Hinata and her "sixth sense," Isogai prepares to hunt the city's deadliest criminals and find the clues he needs to catch his fiancée's killer.

(Source: Seven Seas Entertainment)

12 Manga Like Amamiya Kyoudai no Antique File