Manga with Mystery genre:

Replica datte, Koi wo Suru.

On days when she is sick, on days when she has a tedious day job, on days when she has regular tests. On days when she is too lazy to go to school, I am called upon. I am a convenient substitute for the body of a girl named Sunao Aikawa, and that is me. I may look exactly the same, but my personality is a little different. I can't go out freely, I can't even make plans for tomorrow, I am a replica whose mission is to work for the original. I was supposed to be a replica, but I fell in love. A very pure and slightly mysterious "love story" that takes place in a town by the sea.

4.3 (597)

Chapter 16

1 year ago
Romance Comedy Drama Slice of Life Mystery
Kusuriya no Hitorigoto Gaiden: Xiaolan Kaisouroku

The story of "The Apothecary Diaries" from Xiaolan's perspective. (Source: Manga UP! Global)

4.5 (59)

Chapter 1

1 year ago
Historical Comedy Drama Slice of Life Mystery
Narakusou

Masaya Haraguchi, a young man who moves into an old apartment to live alone for university, falls in love at first sight with a woman named Akana who lives downstairs. However, he soon realizes that he’s not the only one captivated by her… As he witnesses the eerie and bizarre behavior of the other apartment residents surrounding her, Masaya is struck with fear. Who exactly is she, and what is her true purpose…?

3.5 (18)

Chapter 15

1 year ago
Horror Mystery
Aristocrat’s Revenge

4.3 (66)

Chapter 16

1 year ago
Action Drama Mystery
Fate/Grand Order -Epic of Remnant- Pseudo-Singularity I: Quarantined Territory of Malice, Shinjuku - Shinjuku Phantom Incident

The curtain rises on Pseudo-Singularity I. The stage: Shinjuku. Fight alongside mysterious new Servants in a prison district cut off from the outside world.

4.4 (195)

Chapter 21

1 year ago
Sci-Fi Historical Action Comedy Crime Adventure Drama Fantasy Mystery
Hachigatsu Kokonoka: Shidou Hasumi Side Story

A short collection of mini-stories focusing on Shidou Hasumi, set before and after the story of Hachigatsu Kokonoka Boku wa Kimi ni Kuwareru. Each chapter is mostly self-contained. Originally posted by tomomi on Twitter.

4.0 (13)

Chapter 15

1 year ago
Horror Mystery
Yakumei Satsujinki

Rising star actor, Yuya Hiiragi, becomes so absorbed in preparing for the role of a “murderer” that before he knows it, he’s strangling his girlfriend. Tormented by his own “murderous impulses,” Hiiragi sinks deeper and deeper into the role. One night, after a rehearsal, he’s assaulted by some thugs, and at the moment of the attack, his persona as the “murderer” takes over, leaving him surrounded by blood and the lifeless bodies of the men. “Let’s leave, now,” suggests his manager, Kiryu, who proposes covering up the incident. But standing in their way is a detective who sees through their lies. Can Hiiragi continue to live as an actor, or will he lose himself completely?

4.0 (21)

Chapter 13

1 year ago
Drama Horror Mystery
Kurosagi Corpse Delivery Service

Your body is their business! Five young students at a Buddhist university, three guys and two girls, find little call for their job skills in today's Tokyo... among the living, that is! But all that stuff in college they were told would never pay off — you know, channeling, dowsing, ESP — gives them a direct line to the dead... the dead who are still trapped in their corpses and can't move on to the next reincarnation. The five form the *Kurosagi* ("Black Heron", their ominous bird logo) *Corpse Delivery Service*: whether suicide, murder, accident, or illness, they'll carry your body wherever it needs to go to free your soul! The kids from Kurosagi can smell a customer a mile away — it's a good thing one of the girls majored in embalming!

Chapter 7

1 year ago
Comedy Drama Horror Mystery
Shounenhou no Koro

In 2022, a new law was enacted for the protection of children - the Juvenile Welfare Law. With severe punishments for minors, this law greatly reduced the rate of juvenile crime...not! As juvenile crimes get more twisted and bizarre, only the government's designated Juvenile Detectives can step in and solve the case. One day, Juvenile Detective Kokorono Koro is called to the scene of a strange and bloody murder...

4.1 (24)
Mystery
Magan no Akuyaku ni Tensei Shita no de Oshi Chara wo Mimamoru Mob wo Mezashimasu

I was reincarnated as "Luxe," the villain with the "Evil Eye" that appears in the game, but I didn’t want to meet a miserable end after being reincarnated into my favorite game! I decided to find happiness, I started training in "Dark Magic" from that day on in order to fight off the forces that attacked me in search of the Evil Eye. And eventually, I'll become a mob that watches over... my favorite characters! This is the story of how I, who was reincarnated as the villain of my favorite game, and my efforts to change my fate.

3.9 (1175)

Chapter 6.2

1 year ago
Action Romance Adventure Isekai Fantasy Mystery
The Tales of Marielle Clarac

As a plain, unassuming noble’s daughter, Marielle doesn’t stand out in high society. Imagine her surprise when she receives a marriage proposal from the sought-after Simeon, second-in-command of the Royal Order of Knights! Simeon, the heir to an earldom, is highly accomplished in scholarly and military arts—and he’s gorgeous. So why did he propose to such an unremarkable noblewoman? Despite being a target of envy and scorn, Marielle is happy. After all, Simeon seems to be exactly her type: a dashingly handsome man with glasses who appears gentle on the outside, but who has a dark and scheming side! Welcome to Marielle’s world, where people aren’t always what they seem—and a prim, proper exterior can hide the heart of a sly and devious fangirl! [J-Novel Club]

4.1 (832)

Chapter 47

1 year ago
Historical Romance Comedy Drama Mystery
Human Clock

MangaZombie: "When I talk about ‘warped manga from a warped mind’, I always think of this incoherent story. The Human Clock is a lot simpler to summarize than to understand. The hero is Yubi Chizuo again; he’s a student like before, but this time round he’s also a dropout. He stays in his house, which is a family shop selling watches and clocks. He gazes and gazes at them, and little by little, turns into one himself. That is the entire story. It reminds me of Franz Kafka’s Metamorphosis." Also contains the story, The Cat's Mourning Suit (Chapter 6).

2.7 (25)

Chapter 13

1 year ago
Oneshot Monsters Supernatural Thriller Psychological Drama Horror Fantasy Mystery
Pineapple Army

Pineapple Army is a story about a legendary Japanese ex-mercenary, working as a self-defense instructor. He is sent all around the world for a job by an international self-defense agency, and in each episode, there is a human drama. Along the way, he also saves the world a few times from the hands of terrorists.

3.8 (26)

Chapter 16

1 year ago
Survival Mafia Military Gore Police Thriller Historical Action Crime Adventure Drama Mystery
Kaen Majin

The first in the series of manga following the mysterious fire wielding demon slayer known as Tsunami Tougen.

2.6 (7)

Chapter 3

1 year ago
Monsters Demons Ghosts Gore Vampires Supernatural Action Adventure Horror Fantasy Mystery
Sea Breeze and Dragons Dwelling

The story follows Mizuka, who lost her father and is taken in by her uncle, moving to a town steeped in the legend of the dragonpeople. Determined to start anew in this unfamiliar place, Mizuka finds herself at odds with Tenshin, a young ‘dragonperson’ boy lodging at her uncle's home…

4.6 (30)

Chapter 1

1 year ago
Romance Slice of Life Mystery
D•N•Angel•

Daisuke Niwa is an ordinary, if slightly unlucky, middle school student. On his fourteenth birthday, he comes down with a 'condition' that has plagued the men in his family for three hundred years. When he sees his crush, Risa, he transforms into his alter ego, the phantom thief Dark Mousy. Unfortunately, when Dark Mousy sees his crush, Risa's twin Riku, he transforms back into Daisuke. The only cure for this craziness is if Daisuke can get Risa to fall in love with him...

3.9 (96)

Chapter 102

1 year ago
Romance Comedy Adventure Fantasy Mystery
Child of the Kingdom

One country's cruel custom: "leading the life of a stand-in…" Away from the center of the city in a theater, an actor, a boy called Robert, is asked to become the stand-in of Elisabeth, who has the right of succession to the throne. "I will definitely survive and come back." Is Robert to be swallowed by the things to come as the wheel of fortune starts to spin?

4.0 (51)

Chapter 36

1 year ago
Historical Drama Mystery
Hollow Fish

Shizuoka, March 2019. The town where Shiira, a first-year high school student, lives is said that will sink to the bottom of the sea if a major earthquake strikes, but he is fine with that as he still has the past of his mother's death in his mind. Shiira's childhood friend, Anko, has feelings for him and asks him to go to Tokyo with her. One day, however, Shiira meets a woman on a cruise ship, and the wheels of fate begin to move.

3.8 (8)

Chapter 1

1 year ago
Romance Drama Slice of Life Mystery
Death Note - The Other Works / If I Could Have One Wish Come True (Doujinshi)

Pairing: L × Light Yagami Two doujinshis released together on Pixiv by Kanu. DJ #1: The Other Works - A hypothetical scenario imagining L and Kira's first sexual encounter in an AU where Naomi Misora's body was discovered. DJ #2: If I Could Have One Wish Come True - Light kills L. L returns to haunt him as a ghost. R-18.

3.4 (58)
Psychological Romance Boys Love Crime Fantasy Mystery Tragedy
Persona 4 Dengeki Comic Anthology

Anthology of shorts based on Persona 4.

4.3 (34)

Chapter 16

1 year ago
Comedy Drama Slice of Life Mystery
Koakuma Kyoushi Psycho

A captivating new teacher, Miss Kasai, arrives at a troubled classroom. The previous teacher had been hospitalized after a tragic attempt at self-harm, driven to despair by student bullying. "My goal as a teacher is to bring joy to my students," she says with a laugh, before turning her attention to addressing the bullies in her own unique way. However, the students are about to discover that Miss Kasai is not to be underestimated. Could Miss Kasai be hiding a darker side?

3.6 (171)

Chapter 6

1 year ago
Thriller Psychological Crime Drama Horror Mystery Tragedy
Edo Dead

Yamada, a ronin seeking a job in the city of Edo. Meanwhile, a horde of dead people suddenly start wandering around. Aiming to escape from the city with the little girl Wheat I met ...

3.9 (43)

Chapter 8

1 year ago
Historical Action Comedy Drama Medical Mystery Tragedy
Horror Gourmet

A doujinshi anthology that simulates the feel of 90s shoujo horror magazines. Targeted at women and girls and thus is listed as a shoujo manga. Note: Sawhore Uploads scanlated some chapters in their site. Volume 1 is complete while 2 only has a few chapters. Note 2: DO NOT make a mangaupdates page for this as it is listed as a magazine.

3.1 (11)

Chapter 7

1 year ago
Psychological Romance Comedy Crime Drama Horror Mystery
Rin to Hanasaku Majo No Koi

Suddenly, a person's face turns black, and they die a few days later. Futaba Rinka possesses this special ability, and after the death of her parents, she ends up living with her cousin, Nishimiya Saku. Ever since she was a child, Saku has been Rinka's only source of emotional support. He was also her first love. However, Saku has a secret that he hasn't told Rinka...? A love suspense story between a girl with special abilities and a mysterious young man! (Source: Ichijinsha, translated)

3.4 (8)

Chapter 1

1 year ago
Romance Drama Mystery