Manga Directory -- O

Jun 21, 2025

Aki-san's wife has gone to visit their daughter in Milan, Italy. Not knowing that how things will turn out, he finds a sure sign.

Senza titolo #6

Oct 01, 2019

Otsukare Arasa Wa Isekai Demo Fumofu Doragon To Kishi No Sewa Oshiteimasu

There's no intro for it...

Chapters 1

Dec 20, 2025

Ore Maou

From a lineage of elite demon lords, the current demon lord Eugene Satania - Vidorick has one secret way of relaxing from the stress he accumulates in the demon world. Which is to go to the human world under the guise as the human named Sayano Yuuji, mixing into common everyday folk to enjoy himself! Now a rookie-low-class demon suddenly appeared in front of him, named Mist. With a good-for-nothing low-class demon at his side, Yuuji now has to hide his identity at all costs! Let's start this suspicious rom-com!

Vol. 1 Ch. 1 Maou sama Is A Fearful Demon

May 12, 2019

Okitara Onnanoko No Karada Ni Natteta Hanashi

Drawn for a contest to see who can get the most twitter likes. Author's twitter @hikawa79

Oneshot

Jun 21, 2019

Ookiku Furikabutte - The Wizard, My Sweetheart (Doujinshi)

From amberlovepj: Mihashi uses his magic to take away the cause of Age's emotional strife. But for Mihashi the consequences are painful to deal with.

Ookiku Furikabutte The Wizard, My Sweetheart (Doujinshi) Oneshot

May 30, 2018

OBAKE MONOGATARI

There's no intro for it...

Chapters 3

Oct 24, 2016

Osomatsu-san – Arishi Hi No Kimi He (Doujinshi)

There's no intro for it...

May 03, 2022

Oya Ni Wa Naisho No Koimonogatari

An anthology of short stories: 1) Hurt me Gracefully (Shinayaka ni Kizutsuite) by KITAGAWA Miyuki This is the first chapter of Shinayaka ni Kizutsuite 2) Devil Cat's Temptation by NAKAHARA Migiwa 4) Takaya-kun of House Tanaka by SHIMAKI Ako 6) Story of a Long, Long Night by YOSHINAGA Noriko

Vol. 1 Ch. 6 Story of a Long, Long Night

Jun 13, 2019

Oh Great, The Tanuki Are Done For

There's no intro for it...

Chapters 5

Aug 31, 2025

Open Your Eyes To Darkness

During the dark of night, mysterious and horrific events occur right under our noses. The few unlucky people who experience such events either come out forever changed or never return. A series of cautionary tales about humans and their meeting with the supernatural

Chapters 2

Oct 31, 2022

One Plus One (Cheong Bo Ri)

Two boys that have the same disability. A criminal who only targets certain disabled people. A suspenseful school thriller begins.

ch.003

Aug 17, 2020

Owner Of The (Animal) Detective Agency

Kinda like Ace Venture: Pet Detective but gay...

ch.1

Aug 21, 2020

Ouroboros - A.I.-coloured

From Death Toll Scans: One of our editors got really excited at the capabilities of the new digital-colouring A.I., palette.fm, and decided to use it to generate a colour version. We plan to release 1-2 chapters a week till we\'re done. Our flagship series deserves it. For an actual content synopsis, check out the entry for the monochrome version of the series, which you can find under \"Related\". P.S.: Don\'t be too jarred by the heterochromic eyes. Machine learning has limits. We encourage everyone to try it yourselves!

Chapters 4

Dec 12, 2022

OJIIZOO QUEST

Himeno is going on a school-trip with her classmates, including three boys who can transform into the buddhist monk statue, Jizo.

Oneshot

Jan 12, 2020

OMISHI MAGICAL THEATRE: RISKY SAFETY

From RebelliousArt: Risky is an apprentice shinigami who collects souls. Safety is an apprentice angel who saves souls. Due to some accident, Risky and Safety are now magically stuck into one body.

Chapters 3

Oct 20, 2016

Office Partner

“Cha Min-young, do you want to cross the line with me?” Min-young, who has been busy every day serving her ‘male friend’ Tae-ha, whom she has known for over 20 years, is shocked by the betrayal from her boyfriend. In a moment of impulsiveness, she ends up committing an act with her friend Tae-ha. “Shall I make it a draw, Cha Min-young?” After that fateful night, Min-young realizes that the old feelings she has harbored for Tae-ha were not just jealousy. “Cha Min-young, do you want to cross the line with me? Exactly three months.” With that tempting and sweet offer made once again, Min-young willingly steps onto a path with a set end. “Let’s do it. Let’s jump into this fireworks.”

Chapters 4

Jan 13, 2025

Omoi Omoi Ai - Jirai Joshi To Yandere Danshi

I love you 24 hours a day, 365 days a year! The 24th is Lovers\' Day. 17-year-old Sakurai Otomu has been waiting for her boyfriend who never showed up...for 10 hours! But...on Christmas Eve, Otomu was dumped for being too \"intimate.\" She suddenly notices a man who was dumped for the same reason...!? A fateful encounter. All of the conditions she looks for in a partner are met...

Chapters 1

Feb 14, 2025

Otona Na Ishi No Mori

Seinen One-shot compilation containing 15 one-shots, published between 1968 and 1976, with an emphasis on themes of eroticism and SF.Published through Gekiga magazines belonging to Tokuma Shoten.

Vol.1 Chapter 6

Jul 03, 2024

Okami-chan Can’t Keep Her Dignity

There's no intro for it...

Dec 09, 2024

OU DOROBOU JING - TWILIGHT TALES

From Tokyopop: Take a fantastical, far-out journey in the out-of-this-world adventures of Jing and his feisty, feathered friend Kir. Twilight Tales is an awesome new series with a fresh, original look for our heroes! When Jing sets his sights on a valuable jewel in the coffin of a notorious mafia boss, is he really playing with fire? Will Jing get away with it all, or does Cosa Nostra's reach extend beyond the grave?

Chapters 0

Nov 12, 2016

ONSEN YOUSEI HAKONE-CHAN

The story follows Hakone, a hot spring spirit who descended to a spa resort on Earth. However, with her long slumber, she looks like a little girl on the outside. ("Yōsei" in the title is a wordplay on the Japanese words for fairy and a young child.) The high school boy Tōya stumbles across her at a hot spring and ends up joining Hakone in retrieving her original powers. [ANN]

Chapters 2

Oct 30, 2016

One Thousand And One Nights

After witnessing his wife's adultery, King Shahryar becomes intensely distrusting of women, taking a virgin bride every night and immediately having her killed the next morning. In order to put a stop to his terrible crusade, Scheherazade begins to tell the King a series of stories...... Passed down from the middle ages of the Arabian Peninsula, and an 18th century best seller throughout Europe, this epic masterpiece of Middle Eastern literature is now in manga form!

Vol. 1 Ch. 8 Conclusion

Sep 29, 2019

ONEE-CHAN NO IMOUTO

It's a bird, it's a plane - no! It's a young, not-quite-human girl who wants to go to space, even if it means leaving behind her family.

Chapters 1

Oct 23, 2016

OUJI-SAMA TO HAIIRO NO HIBI

From Wonderland After Hours: Atsuko is a young high-school girl who leads a troublesome life. Working a scandalous job for the sake of survival, her reputation is in tatters and she is scorned by her peers. But one day she is noticed by one of three rich boys, Itaru, which she resembles in an uncanny way. Immediately she finds herself whisked away from her everyday life and into a new world where she is forced to take on the role as Itaru's double and replace him as the "Prince".

Chapters 2

Nov 04, 2016

O Hitsuji-chan Wa Sawaritai

Oneshot published in January 2025 issue of Yurihime.

Dec 01, 2024

Owl-Light Bridge

Do you ever find yourself in need of unicorn horns, dragon scales, goblin boogers, or any other object once possessed by a magical creature? Then you have come to the right place. Dealing with magical creatures can be dangerous business for the average human. That\'s why at Owl-Light Bridge, we track down magical creatures and collect what you need from them so you don\'t have to (humanely of course)! Welcome to Owl-Light Bridge!

Chapters 12

Aug 04, 2023

Our Leader Is The Worst, But Also The Best

"When I have s**, I get inspired by my partner." Gento, a student at an idol academy, has an inferiority complex about his plain appearance. When his ability to sing is discovered by Aoe, a former model driven from the showbiz world due to scandals, Gento joins his band. However, Aoe possesses the "worst" of talents that allows him to create songs inspired by his sexual partners...!?Official English Translations:Renta, Coolmic

Chapter 2

Sep 25, 2024

OOKAMI NINGEN TO NINGEN OOKAMI

A man-wolf takes in a wild child.

Chapters 1

Oct 31, 2016

ORESAMA TO OUJISAMA

A prince goes to Japan to escape the palace life and to be treated differently. He wants to be a normal student, but when he catches the student council president's eyes, what will happen to him?

Chapters 1

Nov 01, 2016

Ore No Imouto Ga Konna Ni Kawaii Wake Ga Nai - Chibineko (Doujinshi)

There's no intro for it...

Ore no Imouto ga Konna ni Kawaii Wake ga Nai Chibineko (Doujinshi) Oneshot

Dec 30, 2018

Oniichan Ha Oshimai - Petit Onimai Manga! (Doujinshi)

A fan 4-panel manga about Onimai\'s characters shrinking after drinking Mihari\'s medicine. --- **Links:** - [Pixiv](https://www.pixiv.net/user/4168618/series/187353) - [First chapter on Twitter](1624001097479393280/photo/1)

Chapters 15

Jun 13, 2025

ONGAKU NO JIKAN

From Chibi Manga: She was part of a Band. She wasn't interested in love but…

Chapters 0

Oct 28, 2016

OJOUSAMA WA BUDOUKAI DE ODORU

Kuryuuin Getsuka loves martial arts and she won a championship in middle school but her father forcibly stopped Getsuka from doing martial arts. She was brought back to a high class all-girls academy that she went to when she was in elementary school and it was where there isn't any martial arts club, so she started her own martial arts association.

Chapters 2

Oct 22, 2016

Okorippoi Onnanoko To Issho Na Otokonoko

Artist’s Pixiv Artist’s Twitter

Oneshot

Dec 17, 2019

One Night Love Yuri Anthology

An anthology of girls\' love short stories about one night love affairs. Cover Illustration: Yukiko Koryouriya Kemari (小料理屋けまり) [Tsuzura Ryou] Anata wo Yume ni Tojikomete (あなたを夢に閉じ込めて) [Kawakami Shion] Kuro ni Majiwareba Aka ni Naru (黒に交われば赤になる) [Yodokawa] Itsuwari no Yubiwa to Hontou no Yoru (偽りの指輪と本当の夜) [Shinogi Asa] Inugai-Hanchou no Kaiinu wa Mike (犬飼班長の飼い犬はミケ) [Ikuta Hana] Koukai ni Idakaretero (後悔に抱かれてろ) [Ajiichi] Jaa One Night tte Koto de (じゃあワンナイトってことで) [Sumire]

Chapters 1

Oct 21, 2025

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