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

Strictly Confidential

Chapter 40

269

Seon is a new hire at her company, but her life is already miserable thanks to her naggy boss, Doyeong. However, the tables are turned when she finds out that Doyeong moonlights as a submissive camboy. Seeing him in this unexpected light turns on Seon's dominant side, and she orders him to strip down if he doesn't want his secret exposed at work. This marks the beginning of a filthy colleagues-with-benefits relationship that makes it hard for them to keep it in their pants at the office. Can this unlikely couple keep their raunchy arrangement strictly confidential? Original Webtoon: Lezhin, Bomtoon, Ridibooks, Naver Series, MrBlue Official Translations: English, Spanish *Note: Tappytoon and the now expired Lezhin have different translations. With Tappytoon having the uncensored version for genitals. Lezhin's title is "Your Secret Keeper". Tappytoon's title is "Strictly Confidential".*

Boredom Alert

Chapter 37

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)

Suspicion of Plagiarism

Chapter 14

822

Original Webtoon: Naver Webtoon, Naver Series

Dal Dal

Chapter 35

447

One cold winter’s day, Euno was caught red-handed stealing from a man who had entered the mountain—and was beaten soundly for it. Terrified for his life, Euno broke down in tears, begging the frightening man to spare him, promising he would do anything. From that day onward, he was taken away and forced into servitude under the man. Cha Yunsa, who despises the world. Euno, who knows nothing of the world at all. From a chance encounter on Mount Moak to an inevitable bond—this is the story of their winter, spring, summer, fall… and back again to winter. <a href="https://ridibooks.com/books/297040148" target="_blank" rel="noopener noreferrer">Original Novel</a> <a href="https://ridibooks.com/books/5946000001" target="_blank" rel="noopener noreferrer">Original Webtoon</a>

Not Meant to Be

Chapter 16

196

Alpha Young-han and Beta Min-jae are set to become a family through their respective parents’ romantic relationship. Young-han, who has gone to buy cold medicine whilst acting as an older brother to the trouble-prone Min-jae, is confronted by Min-jae’s sudden Omega manifestation. Losing his senses, Min-jae throws himself at Young-han, an Alpha. Young-han tries to flee, but he cannot escape Min-jae’s pheromones… The two of them end up getting into trouble. --- Original Webtoon: <a href="https://www.bomtoon.com/detail/notmeanttobe" target="_blank" rel="noopener noreferrer">Bomtoon</a>, <a href="https://www.lezhin.com/ko/comic/no_way" target="_blank" rel="noopener noreferrer">Lezhin</a>

There Are No Bad Military Dogs in the World

Chapter 29

468

Min Ah-hyun, who grew up being abused as a test subject in a research institute, enlists in the military, which seems connected to her, to uncover the institute's secrets. There, she meets Shin Hae-jun, her direct superior. He was a...

JoJo no Kimyou na Bouken Part 9: The JOJOLands

Chapter 39: Underwater to the Island of Hawaii Part 1

671

O’ahu, present day. Dua Lipa is the trending musician, and COVID is still a major concern. On this island lives a 15-year-old boy named Jodio Joestar. Living with his brother and mother, he acts as a dealer for certain illegal substances. One day, his employer comes and shows him an excellent find: a Japanese person has landed in Hawaii with a diamond worth over six million dollars. Normally it would be impossible to steal, but for someone with a stand. This is a story of a young boy and his quest to become rich. The third part of the new timeline.

Koakuma Kyoushi Psycho

Chapter 64

33,180

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?

Slave Diaries

Chapter 27

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.

I'm the Only Man in This Clan?!

Chapter 22

921

A lonely, divorced dad goes to meet up with his gaming buddies, thinking they'll all be men his age... but as it turns out, he's the only man in this clan! [Original Webtoon](https://www.toomics.com/webtoon/episode/toon/9028) **Official Translations:** [English](https://toomics.com/en/webtoon/episode/toon/9028)

I'll Protect You

Chapter 47

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)

She's A Married Woman

Chapter 38

772

Jun-Seok just started working after his military service. When he visited his uncle's funeral, he met his aunt, Hui-Ae, who he lived with when he was a kid. When he hugged her with his childhood memories in his mind, the scent of each other stimulated their nerves. (Source: TOPTOON, edited)

To My Detestable Younger Sibling

Chapter 6: TL - Seo Yoonseul [ THE END]

297

A Demon that took possession of the body of Seo Jiwoo, a dead younger brother who was obsessed with oneself. The Demon proposes that if they have a relationship four times, it will leave this body. Dohyeon is breaking down due to fear, hatred for the younger sibling and the unknown entity, and a longing for family... <a href="https://ridibooks.com/books/1642010149" target="_blank" rel="noopener noreferrer">Original Webtoon</a>

Small Beast

Chapter 51

243

[Original Webtoon](https://toptoon.com/comic/ep_list/small_beast?p_id=pp_1601_001)

The Black Panther Next Door

Chapter 24

130

Harang, a white-furred cat shapeshifter. Unlike typical carnivorous shapeshifters, she possesses a frail body and physical abilities, which led to her being constantly bullied while growing up in an orphanage. Although she manages to make a living as a postal civil servant, she is once again living as an outcast at work due to malicious rumors spread by her boss after she refused his unreasonable demands. Through a chance encounter, she discovers that she is a wizard. Carl Riverson, an agent belonging to a special forces unit for shapeshifters. He came to Terberat, far from his original workplace, on leave of absence. On his first day of moving here, he encounters Harang again—a shapeshifter from his memories who left a vivid impression on him as a child and continues to influence him even into adulthood. Determined never to let Harang go, Carl begins to actively court her. <a href="https://ridibooks.com/books/4403014849" target="_blank" rel="noopener noreferrer">Original Webtoon</a>

Winterfield

Chapter 28

494

At the far edge of a distant continent lies Oldenlandt, a land buried under eternal snow, ruled by Grand Duke Giesel Zvendard. With his cold demeanor, overwhelming magical prowess, and eerie rumors that monster blood runs through his veins, he is feared by all. Yet few know that what Giesel truly desires is a quiet life spent immersed in magical research, enjoying a warm cup of tea in a silent study. That modest wish is shattered by an unexpected bride from the southern frontier of Cornia. In place of his runaway younger sister, the one who appears wearing the bridal wreath is Rensley Mallosen, an illegitimate son of Cornia. After briefly hiding to avoid exposing his identity, this bright and talkative knight, golden hair shining like sunlight, begins roaming freely through the castle, stirring small disturbances in what once seemed like an eternally silent ice fortress. Though casting him out for a fraudulent marriage would have been more than justified, Giesel finds himself unable to look away from Rensley, who smiles radiantly and chatters away even at the smallest kindness. Rejected from birth and ultimately cast aside, Rensley came to Oldenlandt with nowhere else to go. Faced with Giesel's quiet yet gentle care, he begins to harbor feelings of affection. But just as he becomes aware of his heart, the moment of parting draws near. To the coldest land on the continent, yet the one filled with the warmest things of all, will Rensley be able to return to Oldenlandt once more? --- **Original Webtoon:** [RIDI](https://ridibooks.com/books/5163001550) [**Official PV**](https://youtu.be/ZpA7TDb6iRE?si=Ro06gWqO529oJSjN)

From Pauper to Prince

Chapter 53

39,981

Having lived in poverty all his life, Brian gets a second chance when he is offered the role of the sole heir to a conglomerate family’s enormous fortune. [Original Webtoon](https://www.toomics.com/uplmscg/episode/toon/8056) **Official Translations:** [English](https://toomics.com/en/webtoon/episode/toon/8056), [Portuguese](https://toomics.com/por/webtoon/episode/toon/8056), [S.Chinese](https://toomics.com/sc/webtoon/episode/toon/8056), [T.Chinese](https://toomics.com/tc/webtoon/episode/toon/8056), [Spanish(LA)](https://toomics.com/mx/webtoon/episode/toon/8056), [Spanish(ES)](https://toomics.com/es/webtoon/episode/toon/8056), [Italian](https://toomics.com/it/webtoon/episode/toon/8056), [German](https://toomics.com/de/webtoon/episode/toon/8056), [French](https://toomics.com/fr/webtoon/episode/toon/8056), [Japonese](https://toomics.com/ja/webtoon/episode/toon/8056), [Thai](https://toomics.com/th/webtoon/episode/toon/8056)

Scumbag (Kim Se-ran)

Chapter 15

951

Dohyun was always awkward when it came to women. He wanted to be smooth with them, just like his friend Jiwon. However, the belated awakening of his lust starts to disrupt his everyday life. “Oppa… I didn’t know you were like this. You’re such a pervert…” _Source: Toptoon, translated_ Original Webtoon: <a href="https://toptoon.com/comic/ep_list/Disqualified_as_a_Human_Being?p_id=pp_1601_001" target="_blank" rel="noopener noreferrer">Toptoon</a>

Right Under His Roof

Chapter 59

282

After years of being pushed around by his so-called friends, Jeff hatches a bold plan to hit back where it hurts most. (Source: Toomics)

Please Feed Me, Sunbae

Chapter 79

240

Summary taken from Lezhin US, which uses Korean names instead of original Chinese names: Im Jiun, a freshman, moves into a share house to have his own space, hoping for an average-looking roommate. But his new roommate, Jeong Suhyeon, is not only handsome and kind but also from a chaebol family—so rich that he owns the very share house Im Jiun is living in. As time passes, Im Jiun realizes that beneath Suhyeon’s sweet exterior lies an unpredictable side, and before he knows it, Suhyeon kisses him out of the blue! How will Jiun handle this chaos? **Original Webtoon:** R15: [LINE Webtoon](https://www.webtoons.com/zh-hant/romance/my-roommate-senior/list?title_no=3385) R19: [LINE Webtoon](https://www.webtoons.com/zh-hant/romance/myroommatesenior-full-length/list?title_no=6149) **Official Translations:** R15: [Thai](https://www.webtoons.com/th/bl-gl/my-roommate-senior/list?title_no=4608) R19: [English](https://www.lezhinus.com/en/comic/feedme_sunbae), [Thai](https://www.webtoons.com/th/bl-gl/my-roommate-senior-complete/list?title_no=6702)

The Merciless Emperor's Pet Consort

Chapter 32

155

“To be violated over and over again like this….” A place that has never been shown or touched by anyone is being dug into by a burning tongue, leaving no escape… The emperor who unified the nation, Jae Yooyeon, was known as a cruel and merciless man, feared by all. One day, Princess Chwiryung of the Chang Kingdom enters the palace as a concubine candidate. Her true purpose: to assassinate the emperor in order to save her impoverished kingdom. Chwiryung tries to approach the emperor with her body, but instead she is caught and her assassination attempt fails. However, the emperor, captivated by Chwiryung’s beauty, commands her to become his plaything. With nowhere to run, she is embraced by him every day, his sweat, scent, and moans of pleasure seeping into her entire being. Before she realizes it, she begins to fall for him— a romance set against the backdrop of imperial China. +

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