Yamakawa, Machi

Kaitou, Kurosuke

Jikobukken Tantei

Stigmatized Property Detective

事故物件探偵

Asagiri, Kafka

Hoshikawa, Shiwasu

It's been roughly one year since Chuuya Nakahara joined the Port Mafia, and he's got his sights set on an executive position. But as he makes plans to move up, a man by the name of Paul Verlaine—claiming to be his younger brother—appears and vows to assassinate everyone he cares about! Now, Chuuya must team up with Adam, a European A.I. investigator, to stop this lunatic before the storm swallows Yokohama once again...

(Source: Yen Press)

Bungou Stray Dogs: Stormbringer

文豪ストレイドッグス STORM BRINGER

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

Atarashi, Yasumi

Shousetsu Gekijouban Mononoke: Karakasa

小説 劇場版モノノ怪 唐傘

Yosumi, Nomado

Vamdead

ヴァンデッド

Kaminaga, Manabu

Oda, Suzuka

Shinrei Tantei Yakumo: Initial File - Shikou no Bias

Psychic Detective Yakumo: Initial File

心霊探偵八雲 INITIAL FILE 思考のバイアス

Hiruzuka, Miyako

The manga centers on three girl friends who spent their youth in the high school softball club. Now in their 30s, they turn their lives around and open a detective agency in Asakusa.

(Source: ANN)

Sayonara Diamond

Goodbye, Diamond.

さよならダイヤモンド

Noramame

One day, private detective Kanako Udagawa receives a request from client Yuiko Shinonome to conduct surveillance on her fiancé. But when Detective Udagawa drops by the fortune-teller that the fiancé's been visiting on the sly, she encounters a boundlessly bubbly woman called Sakura! See the slapstick suspense unfold with this pair of polar opposites!

(Source: MANGA Plus)

Tantei to Uranaishi

The Detective & the Fortune Teller

探偵と占い師

Nagase, Sarasa

Kamikou, Chizu

When it comes to light that Octavia de Reine isn't a legitimate member of the noble House of Reine, she swiftly finds herself disowned. At first she takes this in stride...until her power hungry father and ex-suitor start vying for the house full of mysterious heirlooms that her doting grandmother left her. Little does her family know that she's destined to inherit an even greater legacy. Olivia hopes to follow in Granny's footsteps and become a famous detective, after all! She'll face off against young noblemen, phantom thieves, and magical items corrupted by demonic forces. Oh, and one vengeful angel queen. Moreover, who's this suspiciously young marquis that seems so smitten with her...?

(Source: J-Novel Club)

Kandou sareta node Tanteiya Hajimemasu! Jitsu wa Boukoku no Joou da nante Naisho desu

勘当されたので探偵屋はじめます!実は亡国の女王だなんて内緒です

Hyuuga, Natsu

Chouchin, Anko

Kurihime Ayakashi Yobanashi

繰り巫女〈くりひめ〉あやかし夜噺

Goshika, Marume

An unidentified flying object suddenly crashes at the United Nations Headquarters in New York. A mysterious being calling himself "Noah" appears. He says he has come to save the Earth, but his purpose is completely unknown. At the same time, a mysterious incident occurs at an elementary school, where 88 people suddenly disappear...

In the midst of this unprecedented crisis, the United Nations' supernatural secret analysis department, Black Sheep, is called into action. The key to solving the mystery lies outside of commonsense. 

(Source: Kodansha, translated)

Black Sheep: Choujou Kimitsu Bunsekibu

Black Sheep: Paranormal Intelligence Unit

BlackSheep ─超常機密分析部─

Aida Kouji Choco Pudding

During his second year of junior high, Kentarou Himoto was sent to live with his grandmother after his parents found out that he "liked men." He ended up in a remote village called Mushinashichi. In this village, there is a strange custom: every year, at the summer festival, 15-year-old children are gathered to divine whether they will stay in the village or not, and Himoto is asked to participate...?

A secretive village, a strange custom, and a destiny that cannot be defied... What will the fate of the boys at the mercy of this custom?

(Source: Ichijinsha, translated)

Utakata no Mujina

泡沫のムジナ

Kaibou Tantei

Manga Like Kaibou Tantei