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

Abnormal Rommate

Chapter 115

36,569

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Kimi Wa Darenimo Mitsukaranai De

Chapter 5

732

The two were very close when they were young, but now their relationship has become so distant that they seem like complete strangers.However, whenever they are alone together, Haruki becomes affectionate and clingy again, just like in the old days. Taichi, meanwhile, continues to be suspicious of this behavior.Eventually, Taichi reaches the limit of his patience and tries to push Haruki away, but... that's the basic premise of the story.

Kimi No Mae De Kimi Igai O Daku

Chapter 36

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...

Kou 1 Desu ga Isekai de Joushu Hajimemashita

Chapter 47

487

Accidentally summoned by an ancient map, first year high school student, Kiyokawa Hiroto is forced by the arrogant Lord of the castle to exterminate the vampire that has been haunting his castle. Unexpectedly befriending a girl from Mummy tribe, Hiroto skillfully managed to capture the Vampire with her help. However, he is soon framed by the Lord of the castle.

Maou To Ryuuou Ni Sodaterareta Shounen Wa Gakuen Seikatsu Wo Musou Suru You Desu

Chapter 52

419,370

A boy named Ruisha is trapped in a distorted space created by the ancient hero. What he finds there is the Demon King and the Dragon King, who should have been defeated by the hero 300 years ago. Ruisha befriends the Demon King and the Dragon King, and is trained by them, going from a weak child to a legendary warrior with the power of both demons and dragons. Using his power, Ruisha escaped from the strange place and was accepted into the magic academy where the hero’s descendants live. And now he will have to face many challenges to free the Demon King and Dragon King.

My Girlfriend Was Already Fully Trained

Chapter 37

162

"I shouldn't have checked my girlfriend's phone that day." I heard a strange rumor about my girlfriend, Hayoung, from a friend. "I saw Hayoung go out of a motel... with another man". I turned a blind eye to what they said, thinking they must've been mistaken with what they saw. However, a part of me was suspicious of her. And for the first time, I checked my girlfriend's phone... "What are you doing? Strip. Take off your bra and panties."

The Marquis's Wife Loses Her Virginity to a Slave

Chapter 29

785

Genevieve, a noblewoman from a fallen family, is married off to the elderly Marquis Gregory in exchange for financial support. What awaits her is a nightmarish marriage, where she suffers under his cruel and abnormal tendencies. One day, Gregory brings home a slave named Rau—a man with a strong physique and a surprisingly gentle nature. As Genevieve interacts with him in her role as his caretaker, she experiences kindness for the first time. However, under Gregory’s twisted command, their relationship is forcibly changed, binding them together in a situation neither can escape. As time passes, an unexpected emotional connection begins to form between Genevieve and Rau. But when Gregory notices their growing bond, his obsession takes an even darker turn… <a href="https://www.comico.jp/comic/12800" target="_blank" rel="noopener noreferrer">Original Webtoon</a>

Killing Bites

Chapter 143: "You're Not Allowed to Blink Anymore"

733

People have been created that are human-animal hybrids, and powerful businesses bet on the outcome of their duels. College student Nomoto Yuuya's casual acquaintances ask him to drive them around to pick up girls one day, which he soon finds out means by force. The girl they kidnap is an animal-human hybrid named Hitomi, who slaughters all of them except Yuuya. Hitomi is a honey badger, which has been called the most fearless of all animals. Now Hitomi is assigned to stay with Yuuya, for his protection! Killing Bites are underworld duels between human-animal hybrids. One beast who knows no fear will fight in this animalistic world full of fear and insanity.

Devil's Wish

Chapter 99

757

"How about a kiss for a wish?" Seo Do-ya, a demon, had a strange dream one day and on the same day he met Sowon, a new student at school. Why does my body react even if I just glance slightly at Sowon!? Meanwhile, Sowon attended the new student's welcome party and met the popular actor Woo-Jae Hyeong. Between Woo-Jae Hyeong and Seo Do-ya,who will Sowon choose? A thrilling, dizzying, complicated and messy campus love life begins.

The Marquis's Wife Loses Her Virginity to a Slave

Chapter 29

192

Genevieve, a noblewoman from a fallen family, is married off to the elderly Marquis Gregory in exchange for financial support. What awaits her is a nightmarish marriage, where she suffers under his cruel and abnormal tendencies. One day, Gregory brings home a slave named Rau—a man with a strong physique and a surprisingly gentle nature. As Genevieve interacts with him in her role as his caretaker, she experiences kindness for the first time. However, under Gregory’s twisted command, their relationship is forcibly changed, binding them together in a situation neither can escape. As time passes, an unexpected emotional connection begins to form between Genevieve and Rau. But when Gregory notices their growing bond, his obsession takes an even darker turn… Original Webtoon

Show Me Your Fangs

Chapter 35

916

My Childhood Friend and Naughty Business Made My Grades Go Up?! Sora, raised under a controlling mother, enters Korea University's medical school as her mother wished. However, she feels increasingly helpless as she realizes she's falling behind her brilliant peers. Then, she accidentally witnesses a classmate's secret sexual encounter, and a series of events begin to shake up Sora's daily life. With the sudden appearance of her childhood friend, Chanhee, and a mysterious, seemingly perfect senior, Sora wonders, "This isn't what I imagined university life would be like...?!!" This is the cheeky and bold romantic comedy that engulfs Sora, a freshman at Korea University.

Nezumi's First Love

Chapter 116

400

Nezumi is a girl who was raised as a hitman by the yakuza and grew up not knowing human love. An ordinary young man, Ao, knows nothing. They fall in love and start to live together, but the evil hand is close at hand... ___ Read the prequel oneshot featuring Messiah-chan's backstory <a href="https://mangadex.org/title/a53ff4b3-1514-4b91-9fa0-acd99dd797de/gomennasai-messiah-chan" target="_blank" rel="noopener noreferrer">here</a>.

Yaergnacht of the Dark Moon

Chapter 37

558

While on his way home from an interview, unemployed, unmotivated, jaded 18-year-old Inumata Shinogi encounters the beautiful lady and evil spirit Yaergnacht Finsternis. She demands him to either marry her or die on the spot. He must command the battle against enemies of humanity, the apostles of God (Highlanders), and save the world with his wife!! ___ Alt Official Raw: <a href="https://comic-days.com/episode/2550912965944469925" target="_blank" rel="noopener noreferrer">COMIC DAYS</a>

This Childhood Friend Is Ruined

Chapter 17

877

Original Webtoon: <a href="https://www.bomtoon.com/detail/isggm" target="_blank" rel="noopener noreferrer">Bomtoon</a>, <a href="https://www.lezhin.com/ko/comic/this_friend_is_ruined" target="_blank" rel="noopener noreferrer">Lezhin</a>

Despite That

Chapter 61

116,327

[HoneyXBee Scans] Jung Hae-il', a police officer, returns to his hometown in Seoul from Daegu to escape the guilt of his past. However, he unexpectedly runs into his old lover, Jun Seon', who is involved with a new drug related to his past trauma. As Hae-il faces this new challenge, a mysterious new assistant, Han Gyeol', appears before him

Jinrui Kyuusai Game

Chapter 143

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?!

Vengeance Named Love

Chapter 86

176

This work contains controversial content such as violence and rape. Please be advised. Captain 'Leon Winston' of the National Intelligence Division of the Western Command of the Rippon Kingdom. Unlike his elegant and noble appearance, he was the object of both envy and damnation for both his allies and enemies, known as the "Vampire of Camden" who would torture the rebels cruelly. "Every time I see you, I just want to thrust my gun in your tight space." Strangely, the maid of the interrogation room "Sally Briston" became the object of his desires, as strong as the rage he has for the insurgent rebels. She was ordinary and nothing special... Perhaps it was simply the smell of blood on her that excited him. The interrogation didn't take long. He realized it as soon as he heard her name come out from the rebel spy's lips. He no longer needed to suppress his violent desires. "I stopped myself from tormenting her because I thought she was a good girl, but now there's no need for that. Thank you, Sally. No... Grace." If you want to live, then try begging. You never know. I might hear you out.

My Friend’s Husband

Chapter 39

651

Original Webtoon: R19: <a href="https://series.naver.com/comic/detail.series?productNo=13511837" target="_blank" rel="noopener noreferrer">Naver Series</a> R15: <a href="https://series.naver.com/comic/detail.series?productNo=13511854" target="_blank" rel="noopener noreferrer">Naver Series</a>

Ginga Sengoku Gunyuuden Rai

Chapter 190

141

With the decline of the Galactic Empire, the Milky Way has dissolved into a confusion of warring leaders. One of the strongest of these warlords manages to defeat the imperial Asou Shuzen, and take the remaining imperial family member, the Princess Shimon, as a prisoner. Will she be able to become something more than a pawn in her captor's ambitious plans of conquest? In the meantime, a solider named Rai has become fed up with his leader after returning from a battle with only 3 surviving soldiers in his band. But all Rai's defiance gains him is a glimpse of Princess Shimon and an unwanted place in the warlord's wild daughter's bed. What will future hold for Rai and for the galaxy?

Jinrui Kyuusai Game

Chapter 143

908

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?!

Under the Oak Tree

Chapter 166

757

A flawless love story of the flawed. Stuttering Lady Maximilian is forced into a marriage with Sir Riftan, but he leaves on a campaign after their wedding night. Three years later, he triumphantly returns, ready to cherish her. As life with her husband finally begins, she only has one question - does she deserve this love and happiness? <a href="https://ridibooks.com/books/4362000001" target="_blank" rel="noopener noreferrer">Original Webtoon</a> Official Translations: <a href="https://manta.net/en/series/under-the-oak-tree?seriesId=1255" target="_blank" rel="noopener noreferrer">English</a>, <a href="https://www.kuaikanmanhua.com/web/topic/9790/" target="_blank" rel="noopener noreferrer">S.Chinese</a>, <a href="https://mechacomic.jp/books/181722" target="_blank" rel="noopener noreferrer">Japanese</a>, <a href="https://manta.net/es/series/under-the-oak-tree?seriesId=2185" target="_blank" rel="noopener noreferrer">Spanish</a>, <a href="https://manta.net/fr/series/under-the-oak-tree?seriesId=2454" target="_blank" rel="noopener noreferrer">French</a>

If You Dare to Provoke Me

Chapter 39

723

“I’ll gladly fall for it. For you.” Moon Doha, the sole heir of the Imoon Group. “Your name is Lee Seulbi, correct?” “Yes… that’s right. But who are you?” A casino dealer known as Chloe is tasked with seducing a...

Moonlit Night, Moonlit Sleep, Moonlit Cup

Chapter 22

910

The second son of the Sichuan Tang Clan and the owner of the White Jade Merchant Guild. He is treated like a member of the Evil Sect despite being part of the Orthodox Sect, to the extent that there are rumors that he is an outcast even within his own family. His exact achievements are unknown. * Bottom: Baekri Cheong-ra. Alias: Moon Island Sword. A disciple of Jinshan of the Howol Sect. Also known as the Beautiful Sword Under the Moonlight due to his exceptionally beautiful appearance. Obsessively pursuing beauty and neatness, he gained fame as a chivalrous hero by beating up members of the (ugly) unorthodox sect (because they were ugly). He harbors a secret preference that he cannot tell anyone. <a href="<a target="_blank" rel="noopener noreferrer" href="https://ridibooks.com/books/120080627"">https://ridibooks.com/books/12...</a> target="_blank" rel="noopener noreferrer">Original Novel</a> <a href="https://ridibooks.com/books/120103471" target="_blank" rel="noopener noreferrer">Original Webtoon</a>

Lucky Bitch

Chapter 18

220

"Did you know? There's always a bigger b*tch above those who crawl." Jeong-im, a girl raised in an underprivileged environment in a remote, suffocating seaside village, finally snaps under the relentless absurdity and boredom of her life. She steals her aunt's illicit pocket money—earned from running a decadent business—and flees to Seoul. Determined to be reborn, she decides to spit in the face of societal standards, manipulating various men to satisfy her own primal desires as she navigates her new life... Original Webtoon: Naver Webtoon, Naver Series

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