Top Mystery Manga Series – Must-Read Mystery Manga Online Collection

The Swan’s Grave

Chapter 55

654

Anna, a traveler from another dimension, enters the ominously nicknamed Lohengrin Marquisate—known as “The Swan’s Grave” as a maid, seeking a way back to her original world. There she unexpectedly encounters Marquis Rothbart, who mistakes Anna for his long-lost wife and takes her by force. He then makes an astonishing proposal: “Become my wife’s replacement.” Rothbart also reveals a shocking truth: for Anna to return home, she must bear a child with someone from this world. While Anna wrestles with the decision, Svanhild, Rothbart’s son, lingers near her, pleading: “I… I want a mother, Anna.” It is a relationship fated to end and a condition she cannot refuse. Determined to return to her own world at any cost, Anna ultimately accepts Rothbart’s proposal… +

Yamagami-sama to Okiniiri

Chapter 2

335

Souichiro, a perfectly ordinary young man working as a repairman, loses his way deep in the mountains, only to be rescued by a mysterious man. This enigmatic stranger possesses powers completely detached from the mortal world—suddenly kissing the back of Souichiro’s hand, and even taking flight into the sky.To thank the man for helping him, Souichirou ventures back into the mountains. Yet, after meeting up a few more times, the man has lost his memories...

7's

Chapter 17: The Final Week 10

156

A pretty girl, Tamura Nagisaki, appears before an ordinary high school boy. When she says, "Will you protect me?", his ordinary life is thrown into a tailspin. The pleasure killer, Dimensional Rider, kills Nagisaki without a motive. With Nagisaki's death, time between the two loops back and forth. Can the two escape the carnage and infinite loops…?

An Extra Stole the Male Leads

Chapter 97

70,506

Reborn as Selonia Bessin, the heroine of a romance fantasy novel, a girl is thrust into a demon-slaying mission with the novel's three male leads. They successfully defeat the demon lord, but Selonia falls unconscious for three months on the journey back. Upon awakening, she discovers the trio is now enamored with Grace Benet, an unknown extra. Moreover, the supposedly defeated demon lord is back in hot human form! Why has he returned, and who is this mysterious Grace stealing the limelight? Original Webtoon: <a href="https://webtoon.kakao.com/content/%EC%97%91%EC%8A%A4%ED%8A%B8%EB%9D%BC%EC%97%90%EA%B2%8C-%EB%82%A8%EC%A3%BC%EB%93%A4%EC%9D%84-%EB%B9%BC%EC%95%97%EA%B2%BC%EB%8B%A4/3861" target="_blank" rel="noopener noreferrer">Daum</a>, <a href="https://page.kakao.com/content/62932344" target="_blank" rel="noopener noreferrer">KakaoPage</a> Official Translations: <a href="https://tapas.io/series/an-extra-stole-the-male-leads/info" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://pdt.tencentac.com/?contentId=692&platform=IA&adtag=appshare.ios.detail%26QQ%26692" target="_blank" rel="noopener noreferrer">S.Chinese</a>, <a href="https://tw.kakaowebtoon.com/content/%E8%A2%AB%E7%94%B7%E4%B8%BB%E8%A7%92%E5%80%91%E6%8B%8B%E6%A3%84%E4%B9%8B%E5%BE%8C/837" target="_blank" rel="noopener noreferrer">T.Chinese</a>, <a href="https://jp.piccoma.com/web/product/160609" target="_blank" rel="noopener noreferrer">Japanese</a>, <a href="https://th.kakaowebtoon.com/content/%E0%B8%89%E0%B8%B1%E0%B8%99%E0%B8%96%E0%B8%B9%E0%B8%81%E0%B8%95%E0%B8%B1%E0%B8%A7%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%81%E0%B8%AD%E0%B8%9A%E0%B9%81%E0%B8%A2%E0%B9%88%E0%B8%87%E0%B9%80%E0%B8%AB%E0%B8%A5%E0%B9%88%E0%B8%B2%E0%B8%95%E0%B8%B1%E0%B8%A7%E0%B9%80%E0%B8%AD%E0%B8%81%E0%B8%8A%E0%B8%B2%E0%B8%A2/841" target="_blank" rel="noopener noreferrer">Thai</a>

My Sexy Snail Bride

Chapter 21

296

I come home from work to find a warm dinner waiting for me on the table. Hold on… I live alone, don’t I? Someone is secretly sneaking into my place to cook, clean, and even do my laundry… and honestly? It’s so convenient that I’ve already gotten used to it!

Chronicles of the Demon Slayer

Chapter 8

599

After brutally beheading the demon that murdered his parents and displaying its severed head as a warning, the young boy "Yi-Se" becomes feared rather than praised. Shunned by the villagers and branded a monster for his merciless vengeance, he finds himself with nothing left to live for. With no attachment to life and no place to call home, "Yi-Se" sets out on a solitary journey... one driven not by hope, but by an unquenchable thirst for revenge. His vow is absolute: Every demon must perish. Only then will his vengeance be complete. **Original Webtoon** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=851689), [Naver Series](https://series.naver.com/comic/detail.series?productNo=14298592)

Gangnam Sink

Chapter 7

553

The heart of South Korea — Gangnam — has turned into a massive sinkhole. In the middle of the collapsing and sinking streets of Gangnam, ordinary people fight to survive.

Petals Of Reincarnation

Chapter 123: Battle in Paradise Part 11

25,357

Striving for talent, Senji Touya tries everything he can so he can find it. Kendou, dancing, swimming, basketball, soccer, chess... anything he tries, he fails to exceed it. One day, his classmate, Haito, came to school for once in a long time. Senji refers to her as someone who "has it" or someone who has talent. Later on, he found out that she isn't just someone who has talent, but someone who "took" the talent of herself in her past life. And, those who "took" the talent from their past lives, are also known as "Returners"...

Touhou Chireikiden – The Unfair Detective Satori: Sansara Arc

Chapter 52: The Shining Needle Strikes the Castle Like an Arrow (Pt. II)

430

The fifth official Touhou manga (and the first webcomic) written by ZUN and originally drawn by Ginmokusei. Touhou Chireikiden focuses on Satori Komeiji's endeavors as a detective, solving mysteries around Gensokyo. Serialization was paused for a few months after volume 2 was finished due to the health concerns of the original artist Ginmokusei. The series resumed serialization with Yuu Akimaki as the new artist. - Links: Manga on NicoNico Touhou Web Blog - New serialisation: Amazon Bookwalker EbookJapan

Night of Muheun

Chapter 72

421

The Seo family is cursed with short lives, but Seungjoo seems to defy fate. That is, until a drunken night with his lifelong neighbor, Kim Muheun, changes everything. Awakening beside Muheun, Seungjoo discovers he can suddenly see ghosts. As the eldest son of a prestigious exorcist family, Muheun vows to protect Seungjoo at all costs, even if it means facing deadly spirits. Bound by a deep connection that feels almost predestined, their intertwined fates lead them on a perilous journey of exorcism, danger, and the fight against an ancient curse. [Original Novel](https://ridibooks.com/books/297049295) **Original Webtoon:** R19: [Ridibooks](https://ridibooks.com/books/297066191) R15: [Ridibooks](https://ridibooks.com/books/297066192) **Official Translations:** R19: [English](https://www.lezhinus.com/en/comic/muheun), [Japanese](https://www.beltoon.jp/detail/mufun), [Spanish](https://www.lezhin.es/detail/la-noche-de-muheun), [French](https://www.ono.live/webtoon/18-fated-night) R15: [French](https://www.ono.live/webtoon/fated-night)

The Villainess Refuses to Flirt With the Male Lead

Chapter 114

966

Transmigrating as the villainess of a cliché imperial manhua isn't scary, what's scary is that the male leads are all children! Not only do I have to take care of children, but I'm also being courted by one of them and being called "wife"! Ms. Hong would like to say: "Fuck you, god!" 凸(｀⌒´メ)凸 Official Translations: <a href="https://page.kakao.com/content/59080258" target="_blank" rel="noopener noreferrer">Korean</a>

My Death Flags Show No Sign of Ending

Chapter 90

13,144,116

When he came to his senses, Hirasawa Kazuki, a normal university student, found himself in possession of the body of a game's character. Moreover, it was Harold Stokes, the story's most hated character who was even given the title "King of Trash" by the players. Myriads of landmines are just waiting for him to step on them, like death flags! Will Harold be able to clear the survival route while avoiding the countless death flags in his way?!

The Case of Doctor Agato

Chapter 24

309

Five years after the war, peace has settled over the victorious nation of Formapolis...until a strange series of incidents threatens to shatter it. Corpses with grotesque modifications, known only as "specimens," begin turning up in the capital. Detective Kleine, assigned to the case, is ordered to investigate every detail under the guidance of the state’s special security division. His assigned partner? Doctor Agato, a brilliant but secretive scientist from the defeated nation, whose charm seems as deliberate as it is disarming. As Kleine is drawn deeper into the mystery, he comes face to face with Tristan, a man with unnatural powers and a disturbing connection to Agato. The deeper the investigation goes, the more it becomes clear: this isn't just a case about dead bodies. It's a collision of past sins, buried experiments, and a bond too dangerous to name. “I wanted to see you again, Professor.” Original Webtoon Official Translations: English Note: The official English translation is uncensored.

How to Draw an Ellipse

Chapter 248: Crazy Women (8)

318

Min-sung's secret and the three years of love between two women who are polar opposites lead to them both being caught up in an unexpected event. Original Webtoon: <a href="https://webtoon.kakao.com/content/%ED%83%80%EC%9B%90%EC%9D%84-%EA%B7%B8%EB%A6%AC%EB%8A%94-%EB%B2%95/1768" target="_blank" rel="noopener noreferrer">KakaoPage</a> Official Translations: <a href="https://tapas.io/series/how-to-draw-an-ellipse/info" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://page.kakao.com/content/67179015" target="_blank" rel="noopener noreferrer">Thai</a>

Koppa Mai Chiru Sono Koro ni

Chapter 17.3

13,927

Maebara Kei Gets a Job! In the 13th year of the Heisei era, in the Tokyo Metropolitan Area, Coastal Region. Due to the prolonged economic recession, the police force has weakened, and the growing number of disillusioned youth turning to loosely organized criminal gangs has led to a drastic decline in public peace... Amidst all this, Maebara Kei begins working at the ward office. Can he become a respectable public servant...? (Source: Young Champion)

Fraction

Chapter 12

142,130

The first half of the book is made up by the titular story, a serial killer thriller that gets all kinds of meta and crazy as it progresses. The second half of the book consists of a short interview with Kago (and Ryuichi Kasumi, a Japanese crime fiction writer) and a number of short stories. (from Caterpillar).

Breakers

Chapter 102

168

Joo In-gong was dragged into the remake of a game he was playing called . However, something wasn't right. The only playable characters should be Loch of the human side and Zephyr of the demon side. Instead, he awakens in the body of Shutra— the ninth prince of the Demon Realm, a character who actually didn't exist in the game’s story. Granted two mysterious powers, "Protagonist Setting Adjustment" and "Power of Conquest," Joo In-gong now must alter the game's plot to survive against Zephyr. Yet, with every twist of the plot, he garners more attention...

Crack

Chapter 63

153

Original Webtoon: <a href="https://www.lezhin.com/ko/comic/crack" target="_blank" rel="noopener noreferrer">Lezhin</a>

Record of Ragnarok: The Jack the Ripper Case Files

Chapter 72: The Promised Penny

255

In 1888, a number of prostitutes were murdered in London, by someone known only as "Jack the Ripper". The murderer takes to the streets each day, looking to slit some unfortunate woman open... The past of Jack the Ripper, the English gentleman who represented the human side in the fourth round of the struggle between God and mankind known as Ragnarok, who was one of the top-three most popular characters in the character poll, is finally revealed! ___ Alt Official Raw: <a href="https://mangahot.jp/site/works/z_R0212" target="_blank" rel="noopener noreferrer">MangaHot</a>

Re:Zero kara Hajimeru Isekai Seikatsu - Dainishou - Yashiki no Isshuukan Hen

Chapter 26.2

345

From Yen Press: What you forget, I'll always remember. Using his ability to repeat past events, a power named "Return by Death," Subaru has saved the half-elf girl Emilia from a grim fate. However, his celebration is violently cut short. Subaru now wakes up in a large mansion, unsure of whether time has moved forward. Greeting him are the maid sisters Ram and Rem, whose verbal jabs sting with every word. It's a chance for a new life, but is Subaru in more danger than he realizes?

Keymaker's Case Report

Chapter 7: The Swords of Seven Minds, Part 7

751

In a corner of our world, a number of sacred artifacts called "Yumeyori" were stolen! What challenges will Akane and the members of the locksmith shop face, when they are entrusted with solving the case?? "We will be the key to unlocking this case."

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