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Oban Star-Racers
Oban Star-Racers

Eva's birthday has just passed, and she hasn't heard from her father. Despising the Boarding School she attends, she escapes using her Rocket Bike that she just completed. Taking on the alias "Molly," Eva sneaks with the Earth team to Alwas for the Great Race because the winner of the race gets any ...

Occult Academy
Occult Academy

The story revolves around Maya, the daughter of the former Headmaster of Waldstein Academy, and a time traveling agent Fumiaki Uchida. In the year 2012, the world had been invaded by aliens and time travelers were sent back to the year 1999 in order to find and destroy the Nostradamus Key, which Nos ...

Occultic;Nine
Occultic;Nine

The "paranormal science" story follows nine idiosyncratic individuals, linked by the "Choujou Kagaku Kirikiri Basara" occult summary blog run by 17-year-old second-year high school student Yuuta Gamon. Little incongruities that occur around these nine eventually lead to a larger, unimaginable event ...

Occultic;Nine (Dub)
Occultic;Nine (Dub)

The "paranormal science" story follows nine idiosyncratic individuals, linked by the "Choujou Kagaku Kirikiri Basara" occult summary blog run by 17-year-old second-year high school student Yuuta Gamon. Little incongruities that occur around these nine eventually lead to a larger, unimaginable event ...

Ocean Waves
Ocean Waves

Ocean Waves is a high school love story set in Kochi, Japan. Morisaki Taku and Matsuno Yutaka are best friends when a girl from Tokyo named Muto Rikako transfers to their school. Excluding herself from group activities, she's eventually labeled a snob. Matsuno has a crush on Rikako, so it's no surpr ...

Oda Nobuna No Yabou
Oda Nobuna No Yabou

The historical romantic comedy follows 17-year-old high schooler Sagara Yoshiharu who one day time-travels to the Sengoku period, where all the major Samurai lords are cute girls. Yoshiharu meets Oda Nobuna, the female counterpart of Oda Nobunaga, and begins to serve her as a substitute of Kinoshita ...

Oh! Edo Rocket
Oh! Edo Rocket

In Edo in the mid-1800's, fireworks maker Seikichi Tamaya and his friends struggle to live under the harsh morality laws imposed by the strict city councilor, which ban all luxuries, including fireworks. One day, a strange girl stops by Sekichi's shop with an equally strange request: she wants Sekic ...

Oira Uchuu no Tankoufu (Dub)
Oira Uchuu no Tankoufu (Dub)

In the mid-21st century, mankind has begun the exploration of space, and one company, Planet Catcher Corporation, has pioneered capturing asteroids and comets to mine the resources within them for use on Earth. On one such asteroid, Tortatis, lives 12-year-old Nanbu Ushiwaka - the only child ever to ...

Oishinbo
Oishinbo

Oishinbo is a drama about newspaper reporters. The main character is a cynical food critic named Yamaoka. Oishinbo is a popular mainstream comic for adults in Japan. It is even mentioned in an episode of "Iron Chef." (Source: AniDB)

Ojamajo Doremi
Ojamajo Doremi

Harukaze Doremi considers herself to be the unluckiest girl in the world. Her parents are always fighting, her little sister makes fun of her, and her crush pines after another girl. If only Doremi could just wave a magic wand, she would have a much better life—or so she used to think. After a mi ...

Ojamajo Doremi (Dub)
Ojamajo Doremi (Dub)

Harukaze Doremi considers herself to be the unluckiest girl in the world. Her parents are always fighting, her little sister makes fun of her, and her crush pines after another girl. If only Doremi could just wave a magic wand, she would have a much better life—or so she used to think. After a mi ...

Ojamajo Doremi Sharp
Ojamajo Doremi Sharp

At the end of the first season, Doremi and her friends all had to give up their witch powers and be normal girls again. This also meant that they couldn't see Majorika, Lala, and the fairies again. The MAHO-Dou was also deserted and the door to the Majokai was locked. The Queen, having seen all thi ...

Ojamajo Doremi Sharp Movie
Ojamajo Doremi Sharp Movie

One day Pop was out scavenging with Hana, and found a beautiful rose inside the Queen's garden. Curious, she picked the rose and brought it home. Unwittingly, that rose can cause all wishes to become true, whether good or bad. Good wishes will turn the rose white and bloom, while bad wishes will tur ...

Ojiisan no Lamp
Ojiisan no Lamp

A boy finds a strange object while playing hide-and-seek. His grandfather tells him the story of his own youth, and the important role the old lamp played. This story is about the modernization of Japan and the changes that came with it.

Ojisan to Marshmallow
Ojisan to Marshmallow

Habahiro Hige is a simple-minded older man who works an office job and is an enthusiast of Tabekko Marshmallows. His days often consist of being teased by his 24-year-old colleague Iori Wakabayashi, who uses his obsession to her advantage: from eating them in front of his face, to buying out his fav ...

Okoshiyasu, Chitose-chan
Okoshiyasu, Chitose-chan

Chitose-chan is a penguin who lives in Kyoto. Getting in touch with people and getting fed delicious food as she curiously walks around Kyoto streets is her favourite thing to do. The story features popular places in Kyoto like Kiyomizu Temple, Ginkaku Temple, and Gion from the Penguin's point of vi ...

Okusama ga Seitokaichou!
Okusama ga Seitokaichou!

Hayato Izumi is running for student council president. He's studious, responsible, down to earth...and completely outmatched by his rival, Ui Wakana. Ui wins in a landslide after promising comprehensive sex education, free condoms, and other exciting reforms. Bloodied but not discouraged, Hayato lic ...

Okusama ga Seitokaichou! OVA
Okusama ga Seitokaichou! OVA

Hayato Izumi is running for student council president. He's studious, responsible, down to earth...and completely outmatched by his rival, Ui Wakana. Ui wins in a landslide after promising comprehensive sex education, free condoms, and other exciting reforms. Bloodied but not discouraged, Hayato lic ...

Okusama ga Seitokaichou!+!
Okusama ga Seitokaichou!+!

Hayato Izumi is running for student council president. He's studious, responsible, down to earth...and completely outmatched by his rival, Ui Wakana. Ui wins in a landslide after promising comprehensive sex education, free condoms, and other exciting reforms. Bloodied but not discouraged, Hayato lic ...

Omae Umasou da na
Omae Umasou da na

A Tyrannosaurus called Heart was raised by a herbivorous dinosaur. As he grew up, he was scared by other dinosaurs. One day, Heart meets a baby Ankylosaurus and he names the baby "Umasou (looks delicious)". Umasou started to be attached to Heart and a strange family love develops between the two.

Omae wa Mada Gunma wo Shiranai
Omae wa Mada Gunma wo Shiranai

The comedy manga centers on Nori Kamitsuki, who moves from Chiba Prefecture to a fictionalized version of Gunma Prefecture northwest of Tokyo, and the story focuses on Gunma's culture. Before moving to Gunma, Kamitsuki only sees that the prefecture has a fearsome reputation on the net. Upon moving, ...

Omamori Himari
Omamori Himari

After the death of his parents, Yuuto Amakawa lives a pretty ordinary life in the city. The only problem he has to worry about while attending school alongside Rinko, his next-door neighbor, is his cat allergies. That all changes on his sixteenth birthday, when an Ayakashi—a supernatural creature ...

Omiai Aite wa Oshiego, Tsuyokina, Mondaiji.
Omiai Aite wa Oshiego, Tsuyokina, Mondaiji.

The two are female teacher and her student... but they are engaged!? Nano is a popular teacher who is admired by students. Only Souji, a male student, gives her trouble. One day, someone she knows introduced her for an arranged marriage. Nano is worried at first, but later becomes frank with the ...

Omoi no Kakera
Omoi no Kakera

Hina Satou is a 13-year-old who loves figure skating and lives in a port town in Miyagi Prefecture. After losing her mother in the 2011 earthquake, she and her father are currently living in temporary housing. With sad memories of the earthquake and memories of a gentle mother, the cheerful Hina con ...

Omoide no Marnie
Omoide no Marnie

Anna, a young girl living in Sapporo, is having trouble with her classmates. Due to anxiety attacks, a doctor suggests that Anna move somewhere more relaxing. After moving to the countryside to her family, separated from her mother, she spends her time walking around the area and sketching. She find ...

Onara Gorou
Onara Gorou

Onara Gorou follows the everyday life of Gorou, the "most admirable of farts," as he solves problems in ways that only a fart can. (Source: ANN)

One Off OVA
One Off OVA

A slice of life of high school girls in the early summer. Shiozaki Haruno is a 17-year-old girl who loves her motor cycle, HONDA’s Giorno. She lives in remote highlands and longs for a vivid life in a city.

One Outs
One Outs

Toua Tokuchi is an athlete by profession, but a reckless gambler at heart. On the streets of Okinawa, he uses nothing but his wits and a "fastball" peaking at a mere 134 kmph to somehow achieve 499 wins in the game of "One Outs," a simplified version of baseball between the pitcher and one batter. A ...

One Piece
One Piece

Gol D. Roger was known as the "Pirate King," the strongest and most infamous being to have sailed the Grand Line. The capture and death of Roger by the World Government brought a change throughout the world. His last words before his death revealed the existence of the greatest treasure in the world ...