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

No Dating in the Lab

Chapter 4.1

210

“Who else would teach you about love if not me?” Dr. Jonathan is a prickly genius who cares about nothing but research. He’s just made an astonishing invention that could change humanity’s mating dynamics: the “love potion,” a.k.a. the “pheromone cocktail”! Thrilled at the thought of getting rich, Jonathan orders his TA, Sabrina, to arrange a press conference. Sabrina asks to have her name mentioned as a co-researcher, but Jonathan coldly refuses. Enraged, Sabrina charges at him, and after a fierce scuffle the pheromone cocktail splashes over them both. Intoxicated by the cocktail, Sabrina begins seducing Jonathan and snaps handcuffs on him, tying him up so he can’t attend the press conference. Four hours remain until showtime… Can Jonathan satisfy Sabrina in time?

Our relationship isn’t over yet

Chapter 4.0

696

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Blue Name Pressure

Chapter 29

44,914

“How did I end up doing a strip show in front of a classmate I barely even know?” Baek Han-yeong has lived his whole life as a perfectly ordinary No-Namer, someone without the fated mark of destiny. That is, until he gets to college and meets Ryu Cheong-hyeon, a bold Namer with the name “Baek Han-yeong” etched right across his neck. Cheong-hyeon, convinced fate is at play, starts tailing Han-yeong everywhere, fascinated by the uncanny coincidence. Exhausted and desperate to prove he’s just a plain old No-Namer, Han-yeong blurts out the wildest challenge imaginable… and ends up undressing right in front of him. Regret hits immediately. “If I could go back in time, I’d never throw out a stupid suggestion like that to this lunatic…” But now that the line’s been crossed, will fate keep dragging them back together, or was this one outrageous mistake just the beginning? [Original Webtoon](https://www.bomtoon.com/detail/BNP) **Official Translations:** [English](https://www.lezhinus.com/en/comic/blue_name_pressure), [Japanese](https://www.beltoon.jp/detail/bnp), [T.Chinese](https://www.bomtoon.tw/detail/BNP) --- *Note: The official English and T.Chinese translations are uncensored.*

Climax Training App - Younger Sibling's Breast Milk Edition

Chapter 4.0

476

"H-Hyung. You know... I... I'm going on a date with my girlfriend today..."Frozen stiff by the bombshell dropped by his stepbrother on a Saturday morning, Jang Choigeon turns on a 'Climax Training App' to sabotage the date.The more he uses it, the more his guilt vanishes at the sight of his brother reaching climax, and he becomes increasingly aroused+

The Case of Three People

Chapter 3.7

747

Twin Gong x Childhood Friend **Original Webtoon:** [Postype](https://www.postype.com/@toogtlv/post/20029007)

Daily part time job

Chapter 50.2

545

not found...

AGENT CONNECTION 0 TIMES

Chapter 4.1

670

Yoo Jeongwon, a call center agent worn out from dealing with rude customers, finds unexpected comfort in the kind voice of one particular caller. Feeling a little lighter, Jeongwon finishes his shift and stops by a restaurant after work—only to recognize the same gentle voice coming from one of the staff members, Lee Gyuhyuk. Realizing that Gyuhyuk is the man who comforted him earlier, Jeongwon hesitates, unable to approach him and eventually decides to leave. But just as he’s about to walk away, Gyuhyuk calls out to him. “My shift ends soon, and… well…” “If we just part ways like this, I think I’ll regret it later.” Drawn in by Gyuhyuk’s warmth and sincerity—so much like his voice—Jeongwon finds it impossible to turn him down.

Five Husbands Appeared on My Birthday

Chapter 24

547

Eugene Norton grows up watching her mother, Theodora, suffer due to her father's infidelity. Before dying, her mother leaves behind a strange promisethat on Eugene's 24th birthday, she will be given not one, but several "perfect men." Years later, after...

Die In My Arms

Chapter 37

109

**Note: This work is tagged as "hardcore" and portrays triggering stalking themes. Viewer discretion is advised.** --- A gambler. A failure. And now a divorcé after ending ten years of marriage. This is the life of Jung Cheol. With nothing going right, he barely has time to lament his misfortunes when the very person who started it all returns. Ji Minyoung, his former lover—his fear, his nightmare, and the one he loved so desperately—is back. The person who made Cheol run for most of his life stands before him again. *“I’ll stay with you until the moment you die, Cheol.”* [Original Webtoon](https://www.lezhin.com/ko/comic/die_in_me)

X's partner

Chapter 53

34,858

Taejin lived much of his youth as an idol trainee, and there was only one person he could trust: his actor boyfriend, Haekyeong. But if comparison is the thief of joy, then Taejin was robbed blind, as Haekyeong couldn’t go a day without comparing Taejin to his former lover. Years later, after Taejin and Haekyeong have broken up, the former is finally set to make his debut… There’s just one problem: Jaerim, the ex of Taejin’s ex, is their new center star! As the two step into the spotlight together, they soon become embroiled in a rumor that the two of them have beef; while Jaerim claims that it’s all Taejin’s fault, Taejon claims it’s just one big misunderstanding. To resolve the feud and save their group, the two are forced to take extraordinary measures and engage in some not-so-idol behavior... *(Source: Lezhin)* [Original Webtoon](https://www.lezhin.com/ko/comic/xs_partner) **Official Translations:** [English](https://www.lezhinus.com/en/comic/xpartner), [Japanese](https://www.beltoon.jp/detail/xs_partner), [Spanish](https://www.lezhin.es/detail/ex-candalo), [Thai](https://www.lezhinth.com/detail/xs_partner), [French](https://www.lezhinfr.com/detail/bt_1111245) *Note: The official French translation is uncensored.*

A Basic Guidebook to BDSM

Chapter 37

64,420

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To Me Who Doesn't Love You

Chapter 71

102,075

After surviving a car accident that left him in a months-long coma, Lee Soo-han wakes up with no memory of his past. Standing by his side is a mysterious man who claims to be his husband—Jo Yeon-seo. Although they’re supposedly married, the emotional distance between them feels insurmountable. Soo-han grows wary of Yeon-seo, yet he can’t help but be drawn to the man’s steadfast devotion. Just as Soo-han begins to feel a connection, Yeon-seo shatters his expectations with a shocking revelation: he’s ready to give Soo-han a divorce—for his own good. The more his young husband pulls away, the more genuine Soo-han’s feelings become. Determined to break through Yeon-seo’s guarded heart, Soo-han takes matters into his own hands. [Official Novel](https://ridibooks.com/books/297056175) **Official Webtoon:** R19: [Ridibooks](https://ridibooks.com/books/297067070) R15: [Ridibooks](https://ridibooks.com/books/297067060) **Official Translations:** [English](https://www.lezhinus.com/en/comic/dear_stranger), [Japanese](https://www.beltoon.jp/detail/unlove), [T.Chinese](https://www.bomtoon.tw/detail/unlove), [Thai](https://www.lezhinth.com/detail/thwt_4127) *Note: The official English and T.Chinese translations are uncensored.*

Angel Kiss

Chapter 63

25,260

"So, in the end, this contract is about you helping me."Ha-jin has endured relentless bullying since childhood just because of his homosexuality.At a moment when he wanted to give up on life, fate brings him a second chance through the angel Kael, who appears as if by destiny. In exchange for getting rid of his stalker, Ha-jin agrees to an unfair(?) contract from the delinquent angel Kael, who demands his soul.However, as time goes by, this angel... starts to soften?A romance of mutual salvation between Kael, who was lonely without a place to rely on, and Ha-jin.+

The house you live in

Chapter 41

517

Hwarin, a woman in her thirties raising two children in a very poor family, struggles to make ends meet. One day, she swaps bodies with her friend, who is happily married to a wealthy senior colleague—her first love. However, the joy of finally living the life she had long desired is short-lived, as her family’s dark secrets are revealed, and Hwarin finds herself caught in an inescapable trap. **Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=842465), [Naver Series](https://series.naver.com/comic/detail.series?productNo=13090391)

The Heat of Summer

Chapter 26

407

“But… we’re like siblings.” Cha Seung-jo, a football player every Korean knows, and Lee Seo-hee, who grew up in the same household as him, share a bond like brother and sister. At 18, Seung-jo confessed his feelings to Seo-hee— but after that, he never once returned to Haeyoung, where she lived. Six full years passed. “I endured it all until I succeeded, until I became a real adult.” “Six years is enough. Don’t tell me to wait any longer, Seo-hee.” Now, Seung-jo returns as a grown man— no longer the 18-year-old boy he once was. Maybe that’s why… Seo-hee feels her heart race differently than it did six years ago. “Just for ten days… let’s date.” Seo-hee must now make her choice: continue living like siblings, pretend not to know, or finally… become lovers. +

Jiwoo’s Master

Chapter 38

150,354

Listless and going nowhere, Jiwoo finds a flicker of purpose during his late-night shifts at the convenience store in regular customer, Juhee, a confident and captivating college student who treats him with unexpected warmth. But what begins as quiet admiration soon turns electric, as Juhee reveals a teasing, dominant side that awakens something deep in both of them. Caught between submission and desire, Jiwoo is about to discover just how sweet it can be to give in. [Original Webtoon](https://www.lezhin.com/ko/comic/jiwoo_jooin) **Official Translations:** [English](https://www.lezhinus.com/en/comic/yes_maam)

Full Book

Chapter 31.5

986

Choi Jae-seung, a fifth-year designer at an advertising agency, is a masochist who only seeks out one-night stands with BDSM partners. One day at a model casting site, he is suddenly confronted by the very person who awakened his masochistic desires back in high school—his senior, Min Ho-yeon. After 13 years, the two meet again. Ho-yeon has now become Eli, a mystifying top model from America, and despite Jae-seung’s resistance, he begins to forcibly claim his body... [Original Webtoon](https://www.lezhin.com/ko/comic/fullbook) --- ##### **Note: BDSM should always be consensual, if you engage in BDSM that means there shouldn't be any Non-con/Dub-con, sexual assault, or rape involved. Please remember that this story is a work of fiction which sometimes means the portrayal of certain BDSM acts may not be accurate or inapplicable to real life situations.**

Childhood Friend Complex (Eunhi)

Chapter 78

216,855

Haneul and Mincheol are childhood friends who have been together for 20 years. I discovered my childhood friend's secret circumstances that I didn't want to know?! These two people have never considered themselves opposite sexes, but in situations where misunderstanding leads to misunderstanding and wishful thinking leads to wishful thinking, they gradually begin to become aware of each other.A romantic comedy like a game of tag between a man and a woman who have difficulties because they know each other so well!Friends Complex, Sokkupchingu Complex,

Rebirth as The Villainous Duke

Chapter 4.9

873

Born Again to Be a Bad Duke! Since everyone considers him evil, he will break every rule of the world to find his way home!

Clone

Chapter 28

497

After her sister’s suicide, Bido blames Mr. Shin, the man named in her suicide note. She approaches him at the funeral expecting a cruel monster, but instead finds he feels unexpectedly like her savior. He takes her from her suffocating small town to Seoul, the place she once dreamed of living with her sister. The more time she spends with him, the more conflicted she feels about the man she thought she was supposed to hate.

The Monster Lady And The Holy Knight

Chapter 75

325,684

Read manhwa The Monster Lady and the Holy Knight

A Tyrant Husband

Chapter 30

744

Người Chồng Bạo Ngược / The Tyrant Husband / Tyrannical Husband / Tyrant Husband / 폭군 남편 “No matter how dark it gets, I can recognize you. Your scent, your breathing—even the way you walk.” Her excessively perfect tyrant of a husband is suspicious in every way. Even if she has lost her memories, should she be this wary of the man she once loved—this frightened by him? Eunsol cannot bring herself to trust anything about him. Original Webtoon: R19: Naver Series R15: Naver Series

The Warlord’s Game Strategy

Chapter 16

611

not found...

Unchanged Man

Chapter 71

13,590

***NOTE: This comic contains potentially triggering topics and depictions. Reader discretion is advised.*** --- As a new transfer in his second year of high school, Gu Dohun faces relentless bullying for no clear reason—but his eyes are set on only one person: his quiet classmate, Jeong Yuwon. Yuwon tries to keep his distance, but Dohun’s strange, unreadable pull draws him in until a sudden, devastating incident rips them apart. Years later, they reunite as team leader and subordinate. Yuwon tries to keep things professional, but the past refuses to stay buried...and neither does Dohun’s gaze. Something about him feels familiar yet entirely different. Has he changed…or was he always like this? [Original Webtoon](https://www.lezhin.com/ko/comic/unchanged_man) **Official Translations:** [English](https://www.lezhinus.com/en/comic/unchanged_man), [Japanese](https://www.beltoon.jp/detail/unchanged_man), [T.Chinese](https://www.bomtoon.tw/detail/unchanged_man)

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