Manga Directory -- O

Jul 20, 2019

One day, Taejun finds his cat, Tango, eating a mountain of meat based dish in front of Hyomin’s eatery. “My cat is a vegetarian!“ “Since when did cats became herbivores?! They are carnivores!“ Taejun, a stern, stubborn vet who puts cats above people meets Hyomin, a wholehearted chef who makes scrumptious meat based dishes. Can these two very different people find love? Original Webtoon

Ch.002

Feb 05, 2022

OPERA NO KAIJIN (JET)

Based on Gaston Leroux's "The Phantom of the Opera."

Chapters 1

Oct 23, 2016

Oretachi Ga Osananajimi Janaku Natta Hanashi

There's no intro for it...

Dec 25, 2024

ONE HEART

A story about a part-time, student worker and his ex-salaryman boss. When his boss's company is in danger of going bankrupt, how will the part-timer convince his ex-salaryman to take a loan from him? From 'Sweet Tale' collection of short stories/oneshots: Story 1. Boy Next Door Story 2. One Heart Story 3. Otoshimono Story 4. Long Way Home

Chapters 1

Oct 28, 2016

One-Punch Man (Webcomic)

Follows the life of an average part-time hero who manages to win every battle with a single punch. This ability frustrates him as he no longer feels the thrill of fighting a tough opponent, which leads him to question his past desire of becoming strong.

Chapters 156

Oct 30, 2025

Outdoor Cats

There's no intro for it...

Chapters 2

Jul 27, 2022

OATH TO LOVE & PASSION

Love is Blind...it's also bloodthirsty and has one hell of a sense of humor. Sa Rang and Jung Yul are identical twin sisters who couldn't be more different. One is sweet and introspective, while the other is a manipulative harpy. Nan Soo and Yoo Shin are best friends who aren't that much alike either. One is a hot-headed jock while the other is an intelligent pessimist. When love comes to town, the lives of these four teens are turned upside down when rotating attractions, comedic misunderstandings, and general chaos force them to reconsider everything they've ever known about relationships, trust, and the frailties of the human heart. Fortunately, none of them knew very much in the first place.

Chapters 0

Oct 20, 2016

ORIGINAL CHRONICLE Magical Girl Lyrical Nanoha The 1st

The supplemental manga for Magical Girl Lyrical Nanoha Movie 1st, adding scenes inspired by both the original anime season and it's Sound Stages into the movie verse.

Chapters 12

Jan 15, 2025

OOKAMI NO DOU

A collection of 3 short stories: 1) Steel World 2) Snake 3) The Wolf Eyes

Chapters 2

Oct 22, 2016

Okawari Itadaketa Darouka

There's no intro for it...

? 7.1

Jul 13, 2025

OMORI

After—something—changed his life four years ago, Sunny has not left his house once, living in his own reclusive bubble. Hoping for a fresh start for her son, his mother decides to move their family out of town. However, when his childhood friend Kel re-enters his life, Sunny finds himself thrust back into a world he once knew. With only three days before the move, the duo come across familiar faces as they go through town—reawakening a dark past that Sunny has tried so hard to forget. (Source: Kodansha USA)

Chapters 2

Jul 28, 2024

Ouji-sama Sama No Jijou.

Ouji sama Sama no Jijou. Oneshot

Nov 30, 2020

Osananajimi Ni Kisu Shichatta Hanashi

There's no intro for it...

Jul 02, 2023

Okitsune-sama Ni Onegai!

A beauty in a priestess outfit who destroyed one of the dungeons appearing across the world for the first time. Blowing away goblins in a single hit with a mysterious divine power! Clearing the last boss in less than half a day! She continues to rack up unprecedented achievements one after another. The true identity of the character causing a stir around the globe -- \"Interesting! The \'re-bu-ru\' keeps going up and up!\" -- It\'s Inari, the fox goddess! Immensely curious in new cultures, she knows nothing of modern human society, from helicopters to rice cookers to smartphones. Among them, she is most interested in dungeons, whose true nature is still unknown! Indifferent to precious artifacts inside, she blows through dungeons one after another. A VIP in the national , but for some reason she\'s also a big hit among the populace as an idol? Common sense: 0! But Fox power: Max!? It\'s the start of the strong and cute fox-sama\'s whirlwind adventure!

Chapters 1

Feb 23, 2025

Onikujo

A continuation of Abe Youichi\'s earlier oneshot. Consists of: 1. Onikujo 2. Onikujo Season 2 3. Onikujo Kajuen 4. Kinzoku no Kimi e (oneshot)

Chapters 7

Jun 11, 2022

Ojodeshitaga Kossori Ryu Kishidan No Senzoku Kusushi Ni Narimashita!

Rotte, who had been an apprentice pharmacist in a remote town, unexpectedly discovers that she is actually a princess of the Kingdom of Sironia. She is welcomed into the royal palace, but life in the unfamiliar court feels stifling. While secretly entering the Dragon Knights’ order under a false identity, she ends up becoming the Dragon Knights’ dedicated pharmacist due to their shortage of personnel. Even while hiding her true identity, Rotte finds herself drawn to the earnest yet clumsy commander of the knights, Reginald. Amidst all this, Rotte and Reginald become embroiled in a conspiracy within the royal palace――.

Chapters 1.1

Oct 18, 2025

OTONA NO TAME NO PIANO LESSON

After Shiori loses faith in her piano playing, she meets a weird Physics Professor who asks her to teach him to play the piano.

Chapters 0

Oct 24, 2016

Ojou-sama Matching App

Two cute and well-kept young ladies cross paths, but the truth is, these girls each harbor a secret from the other...?! As a reward for winning the \"Hakoniwa\" 1-Page Manga Award for the second half of 2022, hosted by Monthly Comic Garden, Ito Miyoshi was granted the privilege to have a one-shot of theirs published.

Aug 30, 2023

Otaku Hitei Gyaru

There's no intro for it...

Sep 24, 2024

Osananajimi To Hisashiburi Ni Saikai

There's no intro for it...

Mar 12, 2023

OVER REACH BOY

By Backlash67: While handing out flyers in the park for an art exhibit, Hideaki Kaoru meets a tall handsome young boy. The young boy, Kitamura Shin, immediately asks Kaoru to be his boyfriend. Kaoru refuses; he claims he doesn’t want to have a relationship with someone younger than him especially a high schooler because they would not have anything in common and lack maturity. Kaoru further states he isn’t interest in males. However, once Kaoru notices a bracelet that Shin wears which Shin claims is very important to him and from an unrequited love; Kaoru can’t help but become agitated with himself for being jealous of Shin’s secret crush. Can Kaoru overcome his prejudices against having a younger lover and develop a mature relationship with Shin?

Chapters 1

Oct 28, 2016

Olga A Yiri

There's no intro for it...

Oneshot

May 11, 2020

Onmyou No Kami Kamono Yasunori

There's no intro for it...

Chapters 5

Sep 24, 2025

Omotta Ijou Ni Otokomaedatta Hanashi

There's no intro for it...

Feb 19, 2023

OUDOU RAKUDO NO VIGILANTE

It is the Early Showa Period in the Imperial Capital of Tokyo. Times are hard but there is talk that times were much worse until a certain "evil" was vanquished. Now Tokyo is in the grips of lesser evils and mysterious rumors... Especially those pertaining to the "Byakko" and the "Monster of the Juunikai" ... Just what are they? Are they something to be feared? To be admired? Or more? And when the "evil" returns... Just whose side will they be on?

Chapters 2

Nov 05, 2016

OSEN

The story is set in modern day downtown Tokyo. Our heroine Handa Sen, known as “Osen,” is the star hostess of the longstanding Isho-an, everyone’s favorite restaurant in the town of Kasagi-no-yado. Osen not only loves sake and looks sexy in kimono, but she’s also a “jill” of all trades: She’s a master chef, entertainer and potter, as well as an art connoisseur. The comic is about how Osen settles all the happenings surrounding Isho-an. Sometimes she resolves them with the Japanese spirit of “wa,” or by just being plain logical. The artist’s delicate depiction of our heroine Osen in kimono, various craft including pottery and food is a highlight of this manga. –Kodanclub.com

Chapters 2

Oct 20, 2016

Our Swapped Lives

Hanahata Mitsuharu. Daizenji Takuya. Two polar opposite classmates who unbeknownst to the other admired each other, and it so happened that they bumped into each other while thinking of the other!

Oneshot

Feb 14, 2020

Ordinary Day

There's no intro for it...

Oneshot

May 20, 2020

Outdays

Mogami, a former Pasiri boy who went to Tokyo with a dream of a peaceful youth. However, I made a mistake in making an application, and I entered the \"Kanto worst\" bad high school \"Fushimi High School\"! Even if it is treated as a small fish and is entangled with a bad thing, it is a relationship that unconsciously blows up for some reason. The identity was a powerful person of \"unconsciousness\" raised by the legendary bad team \"Jokumonten\" ... \" The strongest Pasiri who wishes for ordinary student life\" is caught up in the outlaw daily life, but while being involved in the outlaw daily life, the bad action of the new era, the opening!

Chapters 7

Feb 10, 2026

Oyasumi Nini-chan

In so much anguish that he couldn\'t sleep, Ameta thought in desperation that it might be better to end it all. Just as he was about to cast himself off, an angel suddenly dove from the sky and collided with his head. And so began the heartwarming life of a young man named Ameta and his self-proclaimed angel.

Feb 24, 2026

OMAE SAE INAKERYA

There's no intro for it...

Chapters 1

Oct 30, 2016

Ozone

Ou Shigeo’s band, Ozone, would probably be a big hit if it weren’t for the fact that he’s their lead singer – and he isn’t very good. But he’s also the guitarist and songwriter. When the other members of the band finally convince him to find a singer, he hears a song from a Bakery truck on the street...

Chapters 5

Jan 13, 2023

Ojou-sama Is Dead

A story set in the world of Stitch You Together by the author Kurihara Sakura

Chapters 4

May 24, 2024

Osanajimi Ja Dame Desu Ka

An omnibus collection of childhood friends oneshots by Chiba Kozue, Watanabe Shiho, Shiraishi Yuki, and other shoujo authors.

Chapters 1

Aug 18, 2023

Oni Hunting

A short fast-paced horror manga about a woman who is attacked by an ogre and rescued by an ogre hunter, who informs her that she\'s been cursed and the ogre has been summoned to kill her. Will the ogre hunter be successful at removing the curse, banishing the ogre, and saving the woman? Note: although this is primarily a horror manga, there is a moderate amount of nudity and small amount of explicit sex.

Chapters 4

Mar 12, 2025

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