Series List Under "O"
Adventure - Comedy - Drama - Erotica - Fantasy - Horror - Mystery - Psychological - Romance - Science fiction - Thriller - Tournament - Adventure - Slice of life - Magic - Supernatural - Mecha - Ninja - Military - Space - Aliens - Music - Sports - Demons - Ecchi - Girls with Guns - Historical - Fanservice - Supernatural - Harem - Magical Girl - Parody - Police - School - Shoujo-ai - Shounen-ai - Vampires - Yaoi - Yuri - SuperPowers - Martial Arts - Bishounen - Bishoujo - Assassins - Auto Racing
 | (25) Episodes Oban Star-Racers Plot Summary: Eva's been hoping to hear from her dad for years. When she gets a part for her bike, she leaves school to find her dad-Don Wei. But right after she finds him the Earth team is off to race in the great race of Oban. Taking the name "Molly" Eva must prove that she can win-and make her dad recongize her. |
 | (13) Episodes Occult Academy Plot Summary: The Waldstein Academy is an institute devoted to studies on paranormal disciplines, thus becoming known as the Occult Academy. Maya Kumashiro returns to this place to attend the funeral of the former principal, Junichiro Kumashiro, her father. Maya, a skeptic who hates the occult, meets Fumiaki Uchida, a time agent from the future sent to 1999 to prevent the apocalyptic Nostradamus Prophecies from happening. The predictions state that the school will be ground zero of the cataclysm that will destroy the world. They must team up to discover not only what actually led to her father's demise, they have limited time to find out what is the key that triggers the beginning of the end. |
 | (4) Episodes Okane ga Nai Plot Summary: Yukiya Ayase is a gentle, kind hearted, and innocent university student. The only relative he has left, his cousin Tetsuo, betrays Ayase by selling him to the highest bidder in an auction with hopes of making an enormous profit to be able to pay off his debts. Somuku Kanou, a bad-tempered (though very rich) loan shark, comes to Ayase's rescue and buys Ayase for an impressive 1.2 billion. Kanou apparently knows Ayase from something that happened between them in the past, but Ayase cannot remember who Kanou is nor does he understand why he "saved" him. In a desperate effort to keep Ayase close to him, Kanou demands the debt be repaid in full and suggests the perfect way to do it: by selling his body to Kanou for 500,000 each time. Ayase is horrified in the beginning, but something soon begins to grow between them that can't be bought for any price. |
 | (12) Episodes Omamori Himari Plot Summary: The slapstick romantic comedy centers around an ordinary 16-year-old high school boy named Yūto Amakawa who is protected by a spirit — specifically, a beautiful, sword-wielding cat girl spirit named Himari. Yūto is descended from a family that has subjugated demons since time immemorial. The charm that once protected him is now impotent, but fortunately, at that same moment, Himari appears before him as his new guardian. |
 | (21) Episodes One Outs Plot Summary: Hiromichi Kojima, the star batter of the Lycaons, heads to Okinawa to train and bring himself out of a slump. There, he meets Toua Tokuchi, a 134-kmph/83 mph pitcher and the undisputed king of a gambling form of baseball called "One Out." At Kojima's urging, Tokuchi signs up with the Lycaons. His contract differs form the usual, though, in that he gets 5,000,000 yen for every out he pitches, but loses 50,000,000 yen for every point he gives up. |
 | (531) Episodes One Piece Plot Summary: Before he was executed, the legendary Pirate King Gold Roger revealed that he had hidden the treasure One Piece somewhere in the Grand Line. Now, many pirates are off looking for this legendary treasure to claim the title Pirate King. One pirate, Monkey D. Luffy, is a boy who had eaten the Devil's Fruit and gained rubber powers. Now he and his crew are off to find One Piece, while battling enemies and making new friends along the way. |
Genres: comedy, Drama, Romance, Science fiction, Aliens, Fanservice, Harem, Student teacher relationship, | |
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 | (13) Episodes Onegai Teacher Plot Summary: Kusanagi Kei, a high-school student living with his aunt and uncle, has an encounter with a female alien. This alien is revealed to be a new teacher at his school. Later, he is forced to marry this alien to preserve her secrets. From there, various romantically-inclined problems crop up repeatedly. |
 | (11) Episodes Onii-chan no Koto Nanka Zenzen Suki Janain Dakara ne!! Plot Summary: Junior High student Nao's brother complex is so strong, it's almost at the point of incest. She's determined to make her brother, High School student Shuusuke, see her as a woman. So determined, that she goes as far as going into his room to throw away all his non-incest related porn. But as she's looking for his porno stash, she finds a photo album... and she's not in any of his childhood pictures. |
 | (12) Episodes Ookami Kakushi Plot Summary: Kuzumi Hiroshi moves with his crippled sister and his father to the remote city of Jouga, which is famous for its hassaku citrus and the rumors that a species of enormous wolves once lived in the area. While some of the residents are more than friendly, when people begin to vanish suddenly, it becomes apparent that something sinister is afoot... |
 | (12) Episodes Ookami-san to Shichinin no Nakama-tachi Plot Summary: A love comedy parodying fairy tales such as "Little Red Riding Hood," "The Ant and the Grasshopper," etc. Ookami Ryoko (Ookami-san) is a spunky high school girl. She is a member of a "fixer" club so called Otogi High School Bank. She fixes the school's problems with her partner Akai Ringo (Akazukin-chan.) |
 | (39) Episodes Ookiku Furikabutte Natsu no Taikai Hen Plot Summary: Picking up where the original series left off, Ren Mihashi, the ace pitcher of the newly-formed Nishiura High School baseball team, and his teammates face the Sakitama High School team in the next round of the High School Baseball Invitational Tournament as they aim to play in the finals at legendary Hanshin Kōshien Stadium. |
 | (11) Episodes Oretachi ni Tsubasa wa Nai Plot Summary: It's winter in the big city of Yanagihara, and young people will meet and fall in love. Takashi is a boy who plans to escape to another world, but is held back by thoughts of his younger sister Kobato and girlfriend Asuka. Shusuke is a poor part-timer who has to work with student-author Hiyoko in spite of their initial dislike for each other. The antisocial Hayato makes his living as a handyman until he is visited by a girl name Naru. |
 | (26) Episodes Otogiz?shi Plot Summary: They are neither plants nor animals. They differ from other forms of life such as the micro-organisms and the fungi. Instead they resemble the primeval body of life and are generally known as "Mushi". Their existence and appearance are unknown to many and only a limited number of humans are aware of them. Ginko is a "Mushi-shi" who travels around to investigate and find out more about the "Mushi". In the process, he also lends a helping hand to people who face problems with supernatural occurances which may be related to the "Mushi". |
 | (12) Episodes Otome wa boku ni Koishiteru Plot Summary: Mizuho, a young boy who has recently lost his grandfather, strives to obey his last wish—graduate from Seio, a private female-only school. In order to complete this last wish, Mizuho disguises himself as a female with some help from his childhood friend, Mariya and another Seio student, the wise Shion. Mizuho eventually meets two younger girls, Yukari and Kana, whom she and Mariya must mentor. He also meets an old rival of Mariya’s—the traditional Takako. Mizuho’s journey is filled with many obstacles including using feminine language, adhering to feminine behaviors and even competing in an election to school office. |
 | (12) Episodes Otome Yokai Zakuro Plot Summary: In an alternate history of the Meiji era where humans and magical beings known as "yōnin" live side by side, half-yōnin girls team up with army lieutenants to fight yōnin wrongdoers. |
Genres: Comedy, Drama, Romance, Slice of life, Bishounen, Crossdressing, Host club, Male harem, School, Twins, | |
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 | (26) Episodes Ouran High School Host Club Plot Summary: Haruhi is a poor tomboyish student at a school for the ultra-wealthy, able to attend because of a scholarship, and unable to even afford a uniform. One day, she stumbles across the decidedly peculiar but very popular Ouran Host Club. She tries to leave, but accidentally breaks a vase, and unable to pay for it, she's told that she'll have to stay and do odd jobs. That is, until they decide she would be more valuable as a club member. Not realizing she's female due to her appearance, they fix her up and give her a male uniform. She's an instant hit, so they decide to have her keep up the charade even after they find out the truth. Haruhi, being average almost to a fault, doesn't know what to make of the unconventional activities of the Host Club (or of the even more unconventional members), but having little choice, she plays along. Before long, real bonds are formed, friends made, and Haruhi finds herself accepted in a way she could never have been otherwise in this affluent school. |
Genres: comedy, Drama, Romance, Slice of life, Bishounen, Crossdressing, Host club, Male harem, Moe, Parody, School, Twins, Yaoi, | |
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 | (27) Episodes Ouran High School Host Club DUBBED Plot Summary: Haruhi is a poor tomboyish student at a school for the ultra-wealthy, able to attend because of a scholarship, and unable to even afford a uniform. One day, she stumbles across the decidedly peculiar but very popular Ouran Host Club. She tries to leave, but accidentally breaks a vase, and unable to pay for it, she's told that she'll have to stay and do odd jobs. That is, until they decide she would be more valuable as a club member. Not realizing she's female due to her appearance, they fix her up and give her a male uniform. She's an instant hit, so they decide to have her keep up the charade even after they find out the truth. Haruhi, being average almost to a fault, doesn't know what to make of the unconventional activities of the Host Club (or of the even more unconventional members), but having little choice, she plays along. Before long, real bonds are formed, friends made, and Haruhi finds herself accepted in a way she could never have been otherwise in this affluent school. |
Genres: Adventure, Comedy, Drama, Science fiction, Bounty hunters, Mecha, Pirates, Space, Space western, | |
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 | (26) Episodes Outlaw Star Plot Summary: Gene Starwind and his partner Jim Hawking run a small business on the backwater planet of Sentinel III. But all that changes the day that Hilda hires them for a bodyguard job. Now, thrust into a mystery they don't fully understand, they're on the run from the cops, the pirates, an angry alien, and a mysterious assassin. But they've got one thing going in their favor - they have the galaxy's most advanced ship, the Outlaw Star. |
 | (26) Episodes Overdrive Plot Summary: Shinozaki Mikoto is a student who's life is really routine. Going to school, going home, going to school, going home...nothing changes....until the day the girl he likes talks to him and introduces him to bicycling. His life now has a new meaning, and a bright path has shown itself to Shinozaki. Experiencing both failure and success throughout his training, he works hard to become the best cyclist in the world. |