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

The Edge of Ambiguity

Chapter 100

148

For Shin Soo-young, school is nothing more than a place to study. He’s there to get good grades, get into a good university, and get himself a good enough job so that he can help his family. He’s certainly not looking to make friends. You see, for Soo-young, human relationships are...uncertain. And because they’re uncertain, they’re unsafe. Tae Jihwan, on the other hand, swans through life without a care in the world. He’s got it all: money, good grades, and more friends than any one person could truly need. And yet, he seems to have his eye on becoming friends with Soo-young as well. No matter how hard he tries, Soo-young can’t figure out what Jihwan wants from him, but the other boy is nothing if not persistent. Slowly but surely, Soo-young starts to let his walls come down, but just how long can he keep his balance on the edge of all this ambiguity...? (Source: Lezhin) --- Original Webtoon: <a href="https://ridibooks.com/books/4291003392" target="_blank" rel="noopener noreferrer">RIDI</a> Official Translations: <a href="https://www.lezhinus.com/en/comic/edgeofambiguity" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://www.lezhinth.com/detail/thwt_3151" target="_blank" rel="noopener noreferrer">Thai</a>, <a href="https://www.lezhin.es/detail/al-borde-de-la-tentacion" target="_blank" rel="noopener noreferrer">Spanish</a>, <a href="https://www.lezhinfr.com/detail/bt_1110674" target="_blank" rel="noopener noreferrer">French</a>, <a href="https://www.lezhinde.com/detail/dbd_00260" target="_blank" rel="noopener noreferrer">German</a>, <a href="https://ebookjapan.yahoo.co.jp/books/742420/" target="_blank" rel="noopener noreferrer">Japanese</a>, <a href="https://www.bomtoon.tw/detail/vague_edge" target="_blank" rel="noopener noreferrer">T.Chinese</a> --- ##### NOTES: ##### \- The author notes that the series is R19 because of its dark themes, violence and language, not because of explicit sexuality, as S1-S2 takes place in high school. S3 will be them as adults, and only then it will have explicit scenes. ##### \- The official English translation is uncensored.

Record of Ragnarok: The Jack the Ripper Case Files

Chapter 74: The Shadow's Identity

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>

Comes With Benefits

Chapter 40

659

23-year-old Jongsoo is your average guy who has nothing much to show for himself save his youth. He’s got an interest in video production but not much experience. When he sees a job post for Europe Entertainment, he figures he’ll apply and give it his best shot. But when he arrives at the building he’s pleasantly surprised by how nice it is…and by all the female workers he’s passing by… There’s something a bit suspicious about this place that he can’t quite put his finger on but Jongsoo, with nothing to lose, has decided to go all-in on this opportunity! Even if the place is a little weird, at least the job comes with some tempting benefits…! [Original Webtoon](https://www.lezhin.com/ko/comic/nojobchange) **Official Translations:** [English](https://www.lezhinus.com/en/comic/benefits), [Japanese](https://www.lezhin.jp/ja/comic/nojobchange)

Nano Machine

Chapter 328

399

After being held in disdain and having his life put in danger, an orphan from the Demonic Cult, Cheon Yeo-Woon, has an unexpected visit from his descendant from the future who inserts a nano machine into Cheon Yeo-Woon's body, which drastically changes Cheon Yeo-Woon's life after its activation. The story of Cheon Yeo-Woon's journey of bypassing the Demonic Cult and rising to become the best martial artist has just begun. --- - <a href="https://www.youtube.com/watch?v=_t397hfZC3w" target="_blank" rel="noopener noreferrer">Webtoon PV</a> --- - <a href="https://www.webtoons.com/zh-hant/drama/nanomasin/list?title_no=2085" target="_blank" rel="noopener noreferrer">Official Traditional Chinese Translation</a> - <a href="https://www.dongmanmanhua.cn/BOY/moutianchengweimoshen/list?title_no=1519" target="_blank" rel="noopener noreferrer">Official Simplified Chinese Translation</a> - <a href="https://www.webtoons.com/id/fantasy/nano-mashin/list?title_no=2194" target="_blank" rel="noopener noreferrer">Official Indonesian Translation</a> - <a href="https://manga.line.me/product/periodic?id=Z0000948" target="_blank" rel="noopener noreferrer">Official Japanese Translation</a> - <a href="https://www.webtoons.com/th/action/nano-mashin/list?title_no=2171" target="_blank" rel="noopener noreferrer">Official Thai Translation</a>

Kengan Omega

Chapter 368

487

From Comikey: Two years after the events of Kengan Ashura, a young man named Narushima Koga aims to enter the Kengan matches, while also seeking out Tokita Ohma for a mysterious reason. He begins to work under Yamashita Kazuo when he meets Gaoh Ryuki, the spitting image of Ohma. Now with a massive showdown between the Kengan Association and Purgatory, another underground martial-arts fighting organization, looming in the background, how will Kouga become strong enough to take part in the legendary Kengan fights? Official Translations: <a href="https://comikey.com/comics/kengan-omega-manga/10/" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://br.comikey.com/comics/kengan-omega-pt-br-manga/492/" target="_blank" rel="noopener noreferrer">B.Portuguese</a>

Dearest

Chapter 65: ch 60

145

There are no laws when it comes to love. Attorney-at-law Theo Ju is haunted by the disappearance of his ex-lover, who disappeared without a trace while in possession of important evidence. Compounding his despair, the purchase of his long-desired Green House falls through, leading Theo to try and blow off steam via a one-night stand with Dylan Lowell, a famous A-list actor he runs into by chance one day. But Theo is soon to learn that what once seemed to be a serendipitous encounter may instead lead to a winding path of regret… <a href="https://lezhin.com/ko/comic/dearest" target="_blank" rel="noopener noreferrer">Original Webtoon</a> Official Translations: <a href="https://www.lezhinus.com/en/comic/dearest_en" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://www.boomtoon.com/detail/dearest" target="_blank" rel="noopener noreferrer">Thai</a>, <a href="https://www.lezhinfr.com/detail/bt_1110978" target="_blank" rel="noopener noreferrer">French</a>, <a href="https://www.lezhinde.com/detail/dbd_00351" target="_blank" rel="noopener noreferrer">German</a>, <a href="https://www.lezhin.es/detail/dearest" target="_blank" rel="noopener noreferrer">Spanish</a>, <a href="https://www.bomtoon.tw/detail/dearest" target="_blank" rel="noopener noreferrer">T.Chinese</a> Japanese: <a href="https://www.beltoon.jp/detail/dearest" target="_blank" rel="noopener noreferrer">Beltoon</a>, <a href="https://www.lezhin.jp/comic/dearest" target="_blank" rel="noopener noreferrer">Lezhin</a> The English and T. Chinese version are uncensored, and the French version is uncensored from Ep. 6.

Kimi No Mae De Kimi Igai O Daku

Chapter 37

123,754

"Kouji-kun, I want to see you have sex with another girl." Even though this will drive my mind and body further into a corner, I just can't hold back my feelings of wanting her to love me...

Hidden Sun

Chapter 39

674

A young Munyeong tormented by an inexplicable sense of loss, and the black fox who was the only one to approach and comfort him. But one day, the fox disappeared without a trace... <a href="https://ridibooks.com/books/4895002643" target="_blank" rel="noopener noreferrer">Original Webtoon</a>

Dokkaebi

Chapter 26

755

Since childhood, Ji-hye has been able to see things she shouldn't be able to see - and even now, as an adult navigating office life, she spends her days on edge, never knowing when danger might strike. Then one day, after catching her boyfriend of nine years cheating and breaking up with him, she’s on her way home. By chance, she encounters a dokkaebi (Korean goblin) who’s been wandering in search of a mountain god. The dokkaebi makes her a proposal: help him find the mountain god, and in return, he’ll fix her eyes. Holding onto the hope of finally living the ordinary, everyday life she’s always longed for, Ji-hye enters into a contract with the dokkaebi. There are beings who watch these two from afar, or from right beside them. What’s the story between the dokkaebi and the mountain god? And was the encounter between Ji-hye and the dokkaebi truly just a coincidence? <a href="https://www.lezhin.com/ko/comic/guardian" target="_blank" rel="noopener noreferrer">Original Webtoon</a>

Satanofani

Chapter 199

7,819,872

A mysterious syndrome turns schoolgirls into homicidal monsters behind numerous atrocities in Japan. However, nothing is what it seems and when Chika Amagi is arrested for the brutal murder of five people, which starts a journey into uncharted and troubled waters!

The Billionaire’S Replacement Wife

Chapter 86

844,615

River knew she was a replacement when she agreed to marry the billionaire, Noah De Marco. She'd give birth to his dead lover's children, warm his bed at nights, and even raise the babies with him. She will be his only woman but he will never love her. River agreed, secretly hoping… someday he’d change.

Cat Choice

Chapter 29

279

Lim Sang-ho, the popular kid who was the center of attention in high school, reunites with his old friend Go Young-ha at a long-awaited reunion after graduation. Young-ha, who had always been his equal for three years, has become remarkably cool, unlike Sang-ho's memories. However, Sang-ho discovers a kinship with him, discovering that they are both attending college at the late age of 28. On their way home after the reunion, Young-ha and Sang-ho are feeding stray cats in the park. Just as the awkwardness begins to ease as they reminisce about their high school days, Young-ha makes a shocking announcement. "I think the boss at my part-time job likes me. But he's a man, so it's tricky. How do you date men? How do you have sex with them? Do you know?" Sang-ho, who had previously revealed his sexuality, feels annoyed and betrayed by Young-ha's actions... "So, can you teach me something?" Original Webtoon: <a href="https://www.lezhin.com/ko/comic/cat_choice" target="_blank" rel="noopener noreferrer">Lezhin</a>

Punk Love

Chapter 4

681

A ten-day lover who started instead of a damaged car repair fee. In the eyes of the rich man's son Hae-ha, Jehyeon will continue the strange relationship between shipping and the end. “This is what it was like to be a girlfriend. . . . " “That’s exactly what I want from my boyfriend. " After being eaten by Haeun from the first day he knew nothing but exercise, I began to wonder about everything he had with my first experience.

Alpha Above Alpha

Chapter 3

880

Kwak Hajun, an Alpha and the second son of an extremely wealthy chaebol family. Despite his privileged life, he develops erectile dysfunction and, after searching for a solution, finds a doctor named Eunseok. However, Eunseok’s treatment is far from conventional. He discovers that Hajun responds strongly to pain, humiliation, and being dominated, gradually revealing a side of Hajun that even Hajun himself seems unaware of. Their encounters develop into an intense Alpha × Alpha power struggle, with Eunseok taking control and Hajun becoming increasingly drawn into the dynamic despite his anger and resistance. +

Boredom Advisory

Chapter 39: Corruption Advisory (3)

507

Kwon Tae-shin is a man worn thin by indulgence. A VIP at the exclusive members-only club Zeus, he buys fleeting nights with ease, yet never repeats the same encounter twice, forever chasing something that can cut through his suffocating boredom. Lee Won-woo, a low-level club employee and the sole provider for his family, never expects to cross Tae-shin’s path until he is assigned to drive him home one night. On a whim, Tae-shin makes him an offer that changes everything, proposing to buy a night with him instead. Stunned but tempted by the staggering amount of money, Won-woo accepts, only to emerge from the experience shaken and regretful. He tries to avoid Tae-shin afterward, hoping to put it all behind him. But Tae-shin is no longer bored. Fixated on the one man who managed to leave a mark on him, he begins to pursue Won-woo with unsettling persistence, turning a single reckless decision into a dangerous and irresistible entanglement. (Source: Lezhin US) --- Original Novel: <a href="https://ridibooks.com/books/3086003271" target="_blank" rel="noopener noreferrer">RIDI</a>, <a href="https://www.bomtoon.com/detail/gwontae" target="_blank" rel="noopener noreferrer">Bomtoon</a>, <a href="https://www.mrblue.com/novel/E000145331" target="_blank" rel="noopener noreferrer">MrBlue</a>, <a href="https://www.bookcube.com/detail.asp?series_num=925017852" target="_blank" rel="noopener noreferrer">Bookcube</a> Original Webtoon: <a href="https://bomtoon.com/detail/ennui_advisory" target="_blank" rel="noopener noreferrer">Bomtoon</a>, <a href="https://www.lezhin.com/ko/comic/ennui_advisory" target="_blank" rel="noopener noreferrer">Lezhin</a> Official Translations: <a href="https://www.lezhinus.com/en/comic/boredom_advisory" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://www.lezhin.es/detail/el-mal-del-aburrimiento" target="_blank" rel="noopener noreferrer">Spanish</a>, <a href="https://www.lezhinfr.com/detail/bt_1111323" target="_blank" rel="noopener noreferrer">French</a>, <a href="https://www.lezhinde.com/detail/dbd_00527" target="_blank" rel="noopener noreferrer">German</a>, <a href="https://www.beltoon.jp/detail/ennui_advisory" target="_blank" rel="noopener noreferrer">Japanese</a>, <a href="https://www.bomtoon.tw/detail/ennui_advisory" target="_blank" rel="noopener noreferrer">T.Chinese</a>, <a href="https://www.lezhinth.com/detail/boredom_advisory" target="_blank" rel="noopener noreferrer">Thai</a> ##### Note: This series is a global release, meaning all official translations come out on the same day as the original Korean. All official translations are uncensored, except for Japanese.

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

Chapter 15

493

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: <a href="https://www.mrblue.com/webtoon/wt_000067430" target="_blank" rel="noopener noreferrer">MrBlue</a>

I'll Protect You

Chapter 49

593

I never knew the weight of the words "I'll protect you." I hated the fact my father said he'd protect us but left. I despised those words. But I never knew I'd be saying the same thing, to none other than the daughter of the jerk who killed my dad. (Source: TOPTOON)

Over Rev!

Chapter 299: The Man Who Loves Ryoko

380

Over Rev! is a manga about a senior graduate named Ryoko. A while back, she injured her ankle in a track meet. Since then, she didn't know what to do with her life, until she finds out about street racing...

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

Chapter 15

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

A Horde Of Zombies

Chapter 49

956

Koo Seong-Hwan was a former Ju-Jitsu World Champion . When he opened his eyes, the world was destroyed. Even though his body was infected, he had to find his daughter...! **Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=840597), [Naver Series](https://series.naver.com/comic/detail.series?productNo=12838009)

The Bridal Night

Chapter 44

25,021

Jin Meong, the king of Yokai and the only dragon of the otherworld. The one thing he, who has everything, cannot have is the mysterious woman in his dreams. She appears in his dreams uninvited, steals his lips, intertwines their bodies, and shares intimacy, only to vanish for fifteen days without a trace, leaving Jin Meong yearning with thrist. Then, on a snowy night, he finally finds her. The fatefully and fatally intertwined story of Jin Meong, a man willing to give her everything, and Ha Neul, a woman so miserably unfortunate that she desires nothing. Original Novel: <a href="https://page.kakao.com/content/50657565" target="_blank" rel="noopener noreferrer">KakaoPage</a> Original Webtoon: R19: <a href="https://page.kakao.com/content/60482121" target="_blank" rel="noopener noreferrer">KakaoPage</a>, <a href="https://webtoon.kakao.com/content/%EC%8B%A0%EB%B6%80%EC%9D%98-%EB%B0%A4/3076" target="_blank" rel="noopener noreferrer">Daum</a> R15: <a href="https://page.kakao.com/content/60531893" target="_blank" rel="noopener noreferrer">KakaoPage</a> Official Translations: R19: <a href="https://jp.piccoma.com/web/product/162150" target="_blank" rel="noopener noreferrer">Japanese</a> R15: <a href="https://jp.piccoma.com/web/product/162145" target="_blank" rel="noopener noreferrer">Japanese</a> Note: The novel never released a R19 version. The R19 version of the webtoon is actually more of a R17 than a R19. It's not explicit like a smut

Shin Black Jack Ni Yoroshiku

Chapter 19: Face To Face

26,002

Picking up from the conclusion of the previous series, Saitou Eijirou readies himself for his final placement as an intern in the urology department. Amidst the intricate interplay of hypocrisies within the Japanese medical realm, society, culture, and the depths of human consciousness, Saitou unravels the profound essence behind carrying out an organ transplant.

I Wish I Could Have Two Beds

Chapter 69

284

Their Royal Majesties Julia and Endymion married as children and grew up together as the best of friends. As their coming-of-age ceremony approaches, Julia begins searching for a concubine for her husband, oblivious to his feelings for her. Sharing the same bed these days is a bit awkward, and Julia has enough to process. She couldn’t possibly feel that way about her husband... could she? A jaded ex, shifting alliances, and magic aren’t helping matters either! Original Novel: <a href="https://page.kakao.com/content/54794358" target="_blank" rel="noopener noreferrer">KakaoPage</a> Original Webtoon: R19: <a href="https://page.kakao.com/content/65849411" target="_blank" rel="noopener noreferrer">KakaoPage</a>, <a href="https://webtoon.kakao.com/content/%EB%82%B4-%EC%86%8C%EC%9B%90%EC%9D%80-%EC%B9%A8%EB%8C%80-%EB%91%90-%EA%B0%9C-19%EC%84%B8-%EC%99%84%EC%A0%84%ED%8C%90/4377" target="_blank" rel="noopener noreferrer">Daum</a> R15: <a href="https://page.kakao.com/content/65849394" target="_blank" rel="noopener noreferrer">KakaoPage</a> Official Translations: R19: <a href="https://tapas.io/series/i-wish-i-could-have-two-beds-mature/info" target="_blank" rel="noopener noreferrer">English (Uncensored)</a>, <a href="https://jp.piccoma.com/web/product/177860" target="_blank" rel="noopener noreferrer">Japanese</a>, <a href="https://www.lezhinde.com/detail/dad_2000509" target="_blank" rel="noopener noreferrer">German</a>, <a href="https://www.lezhinfr.com/detail/daf_1001008" target="_blank" rel="noopener noreferrer">French</a> R15: <a href="https://tapas.io/series/i-wish-i-could-have-two-beds/info" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://jp.piccoma.com/web/product/177859" target="_blank" rel="noopener noreferrer">Japanese</a>, <a href="https://www.lezhinde.com/detail/dad_2000508" target="_blank" rel="noopener noreferrer">German</a>

Over Rev!

Chapter 299

4,061,845

Over Rev! is a manga about a senior graduate named Ryouko. A while back, she injured her ankle in a track meet. Since then, she didn't know what to do with her life, until she finds out about street racing… Official Release: - Indonesian release by Level Comics as **Over Rev** (2008)

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