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

Mixed Blood

Chapter 2

471

Untold secrets of the body that history never dared to record.From the top of your head to that place…

One day, Doppo, the high school protagonist, suddenly heard a voice from his phone saying "The game has begun" and that the "chosen challengers" have been taken to another world. If they complete their mission, they can return to their original world. However, this new world is filled with terrifying monsters... Can they survive and return to their original world?!

D.Diver

Chapter 43: For the Sake of Justice

952

Kagura is a college student who lost his parents in a fire when he was a child. One day he visited a courthouse as part of a seminar and that same night he had a strange dream. Was it just a nightmare or was it reality?

Boredom Alert

Chapter 38

595

*“He was a man worn down. Worn down by boredom itself.”* Kwon Taeshin, a VIP client at the exclusive members-only club Zeus, was the type to buy a night with someone—but never the same person twice. One day, Lee Wonwoo, a young man working part-time at the club to support his family, ends up driving Taeshin’s car as a valet. Out of nowhere, Taeshin whimsically offers to buy a night with him. *“Have you ever slept with a man before?”* Plain-faced and ordinary, Wonwoo is stunned to be chosen, but the hefty sum offered tempts him into accepting the proposal. *“You’ll pay me upfront, right?”* After a painful and regrettable night, Wonwoo decides to avoid Taeshin altogether. Yet, Taeshin finds himself increasingly obsessed with him. *“I thought about it carefully... and I think I want to sleep with you again.”* **Original Novel:** [RIDI](https://ridibooks.com/books/3086003271), [Bomtoon](https://www.bomtoon.com/detail/gwontae), [MrBlue](https://www.mrblue.com/novel/E000145331), [Bookcube](https://www.bookcube.com/detail.asp?series_num=925017852) [Original Webtoon](https://www.lezhin.com/ko/comic/ennui_advisory)

The Island's Naughty Teacher

Chapter 32

406

On Beomhaedo, a small island in the South Sea, a dangerous yet passionate love blossoms between a man hiding his true identity and a woman who yearns to escape the island. This is the story of the island village teacher,...

Slave Diaries

Chapter 29

633

On the surface, life flows through a series of mundane daily routines and ordinary social connections. Yet, beneath this veneer of normalcy lies a hidden world of unspoken desires and strictly forbidden emotions. What begins as a mere accident ignites an uncontrollable spark that quickly rages out of hand. The magnetic attraction between them, once a subtle pull, now spirals into a deeper, more intoxicating pursuit of pure pleasure. A single, misguided choice has birthed a taboo relationship that defies all social boundaries. As the stakes rise, the characters find themselves sinking further into a treacherous mire of ecstasy from which there is no escape. The path back to their former lives has been utterly severed, leaving them to drown in the very sensations they once feared. This is a story of the thin line between restraint and the point of no return.

Relationship Reversal

Chapter 121

81,709

"You look like you'd be fun to mess with." These senior girls treated me like a pet, humiliating me every chance they got. But the tables have turned, and now they find themselves completely submitting to their junior. "I'm going to turn this whole relationship upside down. Get on your knees." [Original Webtoon](https://toptoon.com/comic/ep_list/turn_around) **Official Translations:** English ([DAYcomics](https://daycomics.com/content/103698), [Toptoon](https://global.toptoon.com/content/103698)), [T.Chinese](https://www.toptoon.net/comic/epList/81116), [Japanese](https://toptoon.jp/content/%E9%80%86%E8%BB%A2%E5%A4%A7%E5%AD%A6%E6%80%A7%E6%B4%BB/103606)

Mastering the Secretary

Chapter 4

836

Secretary Han has been working for the same family for years, so he watched the young master of the house grow up and has always doted on him. But now his beloved young master has taken a special interest in him. Unable to say no to his beautiful young master, they start a steamy sexual relationship. However, Secretary Han is in for an unexpected surprise because his master is going to show him what it’s really like to be under him. **Original Webtoon:** [RIDI](https://ridibooks.com/books/4947000001), [Lezhin](https://www.lezhin.com/ko/comic/doryeonbiseo), [MrBlue](https://www.mrblue.com/webtoon/wt_000057560), [Naver Series](https://series.naver.com/comic/detail.series?productNo=9870571), [BookCube](https://www.bookcube.com/toon/detail.asp?webtoon_num=230449), [Bomtoon](https://www.bomtoon.com/detail/youngmaste) **Official Translations:** English: [Lezhin](https://www.lezhinus.com/en/comic/mastering) Japanese: [cmoa](https://www.cmoa.jp/title/291307/), [Renta](https://renta.papy.co.jp/renta/sc/frm/item/381972), [Mecha Comic](https://mechacomic.jp/r/books/198887), [Booklive](https://booklive.jp/product/index/title_id/20132146/vol_no/001), [Beltoon](https://www.beltoon.jp/detail/bocchantoboku) Others: [T.Chinese](https://www.bomtoon.tw/detail/dobi), [Spanish](https://www.lezhin.es/detail/un-secretario-sumiso) ***Note:** Compared to its Pre-serialization, this version has scenes redrawn and new scenes added*

Koukou Tekken-den Tough

Chapter 408: A Matter of Principle

738

Nobody enjoys a good fight more than "Kiibo" Miyazawa, a high school student whose father is training him in the family's secret martial art. Kiibo dreams of becoming the next Bruce Lee, but his awesome fighting skills may soon surpass his idol's!

U12

Chapter 39

24,355

12 girls are imprisoned in a mysterious prison. <br> Fighting their way through this unjust and abnormal conditiions, these girls have begun a life and death struggle. A harrowing little girl prison escape.

Relationalism

Chapter 93

912

In Gangnam’s famous tower, packed with various shops, the story begins with Kang Ji-young, a receptionist at a dermatology clinic. Ji-young has been secretly seeing a married doctor colleague, but she starts to suspect that he has yet another mistress—who seems uncomfortably close to her own workplace. Within this one building full of diverse people, ugly relationships and hidden stories slowly surface…

How to Pursue Snow White

Chapter 39

359

“If you still feel guilty toward me, then choose me.”The youngest daughter of the AE Group.An illegitimate child.A cripple.And… Snow White, Jeong Hamin, a woman with albinism.So fragile she seems as though she might shatter at a single touch—and then, he appears before her.Woo Jeongheon, the ill-fated soccer player whose life Hamin ruined ten years ago.Reappearing before her after a decade with a completely changed demeanor, Jeongheon proposes a contract marriage to Hamin…“If marriage isn’t possible, then at least keep me by your side for a while.”“Keep you by my side… for a while?”“You’re good at that, aren’t you? Keeping someone close, draining them dry, controlling them with just your fingertips.”“……”“Hamin… do what you’re best at.” +

Jinrui Kyuusai Game

Chapter 141

234

One day, Doppo, the high school protagonist, suddenly heard a voice from his phone saying "The game has begun" and that the "chosen challengers" have been taken to another world. If they complete their mission, they can return to their original world. However, this new world is filled with terrifying monsters... Can they survive and return to their original world?!

Phase Me

Chapter 293: Ep-74 Part 1/4

83,918

Apathetic is the word. But when there's someone who hates him to the point of abuse there is no way he is going to take that in and do nothing about it.<br> <br>

It's All Your Fault I've Been a Jerk

Chapter 14

398

Unemployed and living off nothing, Chae Seogeum spends his days holed up at home cyberstalking and leaving nasty comments - a true keyboard warrior with zero life. That is, until he finally gets sued by the very artist he’d been obsessively fixated on: Kim Tae-in. Dragged to the police station, Seogeum is a bundle of nerves… but the moment he sees Tae-in’s face in person, his heart skips a beat instead. And so, the moment his questioning is over and he steps out of the station, Seogeum does the unthinkable: He crosses the line with Tae-in all over again. --- Original Webtoon: MrBlue

Tsumi ni Nureta Futari

Chapter 69

852,822

This tale of forbidden fruit is ripe with angst and taboo. Nineteen year old college girl Kasumi is traveling in Italy after a painful breakup. In Rome, she meets a handsome Japanese man and, knowing nothing about him, not even his name, she has a one-night stand with him. There should have been no chance of them meeting again, but when Kasumi gets back to Japan, she learns that fate has played a cruel trick! The man she slept with was Yoshiki…her younger brother!! And that's only the start of it…

Occult Romantic Comedy!

Chapter 53

602

Timothy, the sole reporter for the occult blog Non Occultum, now finds himself in quite the dilemma. *“I’ll make you go viral.”* In front of him stands Jonathan Maxstars—a B-movie horror actor hailed as Hollywood’s next big thing, a man so handsome every angle looks like a photoshoot, and, apparently, the very subject of a mysterious sighting posted on an anonymous horror forum. Can Timothy really trust this enigmatic man enough to take his hand? *“It’s all just boring to me.”* A secret-shrouded “fan,” Jonathan, and a sharp-minded occult reporter, Timothy—their California-set occult romantic comedy begins! [Original Novel](https://ridibooks.com/books/5097000367) **Original Webtoon:** R19: [KakaoPage](https://page.kakao.com/content/66958577), [Daum](https://webtoon.kakao.com/content/%EC%98%A4%EC%BB%AC%ED%8A%B8-%EB%A1%9C%EB%A7%A8%ED%8B%B1-%EC%BD%94%EB%AF%B8%EB%94%94-19%EC%84%B8-%EC%99%84%EC%A0%84%ED%8C%90/4530) R15: [KakaoPage](https://page.kakao.com/content/66945541) **Official Translations:** English: R19, R15 (Tapas, Oct 28)

Hooked and Cooked

Chapter 16

530

The owner of a seafood restaurant falls in love at first sight...with a merman! Hae-beom, often mistaken for a thug due to his tough appearance, unexpectedly receives help from a mysterious customer named Sang-ah. To his astonishment, Sang-ah turns out to be a merman who requires human saliva in order to gain his legs. Seizing the opportunity, Hae-beom offers him a daily kiss, harboring his own secret hopes and desires. For Sang-ah, it's just a means to an end, but Haebeom can't help but wonder: will Sang-ah ever reciprocate his feelings? **Original Webtoon:** [Lezhin](https://www.lezhin.com/ko/comic/mermaid_s2), [Bomtoon](https://www.bomtoon.com/detail/ffls) **Official Translations:** English: [Lezhin](https://www.lezhinus.com/en/comic/hooked_cooked) Japanese: [Beltoon](https://www.beltoon.jp/detail/mermaid), [Lezhin](https://lezhin.jp/comic/mermaid) Others: [Thai](https://www.lezhinth.com/detail/mermaid), [Spanish](https://www.lezhin.es/detail/escamas-a-primera-vista), [T.Chinese](https://www.bomtoon.tw/detail/mermaid) *The official Thai, Spanish and T.Chinese translations are uncensored.*

Suspicion of Plagiarism

Chapter 21

822

**Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=846106), [Naver Series](https://series.naver.com/comic/detail.series?productNo=13575121)

Yami Baito Saki wa Isekai Deshita

Chapter 9

22,247

If you don't earn money, you can't survive!When his parent falls ill, high school student Hashiba Ryuuji has to give up his dreams and start working to earn money for his mother's hospital bills. One day, Ryuuji finds a part-time job that pays an unbelievable amount, and even though he knows it's suspicious, he joins to pursue his dream once again. Following his employer's instructions, he passes through a mysterious door and finds himself in an unknown world where he is suddenly attacked by monsters...!?

1095 Days of Flowers

Chapter 9

392

"This year I want flowers for our anniversary again."That was all it was.Kosei, a gay businessman, has been dating Haruka, a straight man he met at a bar, for three years. They have been dating for three years and living together for a year.Now that the joy of dating the person he loves has cooled off, Haruka's unromantic words and actions are no longer enough."But at least today is our anniversary..."Despite Kosei's feelings, Haruka is the same as usual. Kosei, annoyed by this, breaks up with Haruka on the spur of the moment.But Haruka agrees, saying "I understand"...?Because they love each other, they are sad at the smallest differences....Sadness, tenderness, and loveA bitter-sweet love story for adults+

Damage Orange

Chapter 8

302

For her family and her tuition, 'Jeanne' takes a job as a maid for the 'Oderwood' family. Smitten by the character of 'Daniel', the kind and hardworking eldest son of the Oderwood family, Jeanne heads to his bedroom at his request to spend the night together. "With this scent, could you come to my room tonight?" **Original Webtoon:** [Ridibooks](https://ridibooks.com/books/2404016552), [Naver Series](https://series.naver.com/comic/detail.series?productNo=12968554), [Bomtoon](https://www.bomtoon.com/detail/DAMAGE_ORANGE), [Lezhin](https://www.lezhin.com/ko/comic/damage_orange), [MrBlue](https://www.mrblue.com/webtoon/wt_000068463), [BookCube](https://www.bookcube.com/toon/detail.asp?webtoon_num=250218), [Anytoon](https://www.anytoon.co.kr/webtoon/episode/10925), [Aladin](https://www.aladin.co.kr/shop/wproduct.aspx?ItemId=363034952), [KyoboBook](https://ebook-product.kyobobook.co.kr/dig/epd/ebook/E000011326956), [Yes24](https://www.yes24.com/product/goods/145649390)

Mind Control

Chapter 41

503

Choi Hongryeol is falsely accused and becomes an outsider. One day, he receives a mysterious hypnosis app link and gains the power to take revenge on the women who had always looked down on him. “I’ll fuck the ones who ignored me all this time.” [Original Novel](https://novelpia.com/novel/22562) [Original Webtoon](https://toptoon.com/comic/ep_list/Mind_Control?p_id=pp_1601_001)

The Pain of Parting With My Beloved

Chapter 16

10,263

Hyun Seoha, who was born with the body of the ‘Phoenix of Heaven’ can conceive the Emperor’s seeds. The plan of his Father and Grand Master, Hyun Yugo, who offered Hyun Seoha to the emperor to covet power, is all ruined by the rebellion of the Eunrang Tribe. Which occurred the day before the current Emperor and Seoha’s wedding. Eun Sang Dam who became the new emperor after destroying the Phoenix Kingdom, humiliates Seoha and orders him to dedicate his body to himself... “There’s no such thing as Phoenix existing within my country. He's just a lowly human!" Between the grudges that piled up due to repeated misunderstandings, the affection and kindness that occurred unknowingly became poison. Leaving the two hearts in pain and eventually parting ways. “Take it off. You should not have a single piece of cloth on your body.”

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