Genre - Seinen

  • The series began as a fairly humorous and lighthearted satire of Japan's teenage delinquent-gang subculture told from the perspective of Matsushita Tadashi (who also narrates these early Karate Bu stories), a 2nd year student at Kangokou High and a constant target of Kangokou's numerous bullies who beat him up routinely after school. He is almost always accompanied by his best friend Saitou Takaki, who is also constantly harassed. As the pair grow increasingly tired of being victimized they decide to join the titular Karate Club, which is notorious throughout Osaka's youth gangs for training and producing the city's most hardened and toughest teenage thugs while maintaining the facade of a legit school sports club. But when they join the club, they find themselves picked on just as much if not worse by the club's current members. But as the story progresses they grow to be increasingly capable fighters. Along with the manga's change in attitude and central character, the various teenage fighters throughout the series grew increasingly stronger and even began to tap into superhuman ki abilities, putting Osu!! Karate Bu in the company of other similar epic Sh?nen fighting manga such as Yu Yu Hakusho, Dragon Ball, and Fist of the North Star. Osu!! Karate Bu was wildly popular in its native Japan, but is otherwise almost completely unknown in most other countries. It spawned a four episode OVA mini-series released over a period of two years from 1990-1992, a 1990 live action movie, and a 1994 Super Famicom fighting game.

    Osu!! Karatebu
  • Otaku Takuya Seo enjoys "anime for girls" but is unable to publicly express his enjoyment. He hooks up with Amane and Ijichi, two girls from his class, one day, but it turns out that Amane is also an otaku. The otaku meets the women he likes in this romantic comedy set in a school.

    Otaku ni Yasashii Gal wa Inai!?
  • The manga starts off with a very odd killing. Then, it jumps to a few days later where Yousuke ends up breaking a small shrine. It later gives him the guardian Suzaku - just in time too, for he must face the murderer that opened the manga.

    Otogi Matsuri
  • Yamada Tarou is living a regular life, until the death of the father he never sees catapults him into the role of the 13th King of the holy Phantasma kingdom. Now that he's king, Tarou has become the target of assassins, and all he has on his side is a mistress, Princess Kaguya, whose goal is to make Tarou a worthy king.

    Otogi Taisen Fantasma
  • It's the Meiji Era in a slightly alternate Japan, and the Gregorian calendar has just come into effect. The fox-eared girls living in the youkai part of town are about to be put to work together with a delegation of young human soldiers, to promote interracial understanding. So what will happen when Zakuro's strong personality collides with human sensibilities?

    Otome Youkai Zakuro
  • Ten years ago Yaichi's twin brother moved to Canada and married a man called Mike. A month ago, he died. Now Mike has arrived to Japan to meet Yaichi and his daughter Kana. Yaichi has to face his own preconceptions and come to terms about who his brother really was.

    Otouto no Otto
  • Set on the Silk Road that connected Asia with Europe before the modern times. The story of Amira, a woman skilled in archery and horsemanship, sent to marry Karluk, a boy from another village who is 8 years younger than her. But all is not well, as her village decides to take her back...

    Otoyomegatari
  • This is the era of the Three Kingdoms. [Distinction between water and fish] it is said that one can't live without the other, it is the same as the relation between generals and strategists. Elite Generals and Strategists are the specialists when it comes to battle. What secrets are they are hiding about their special abilities?!

    Ouja no Yuugi
  • The story of a young slave gladiator in an underground arena. He doesn’t know about his past or how he got to where he is, only that his name is Aegir, and that he is strong. One day he kills the boss and escapes the arena, joining a band of mercenaries as a new recruit. During one mission, they encounter the vampire, Lucy, who slaughters the band with her inhuman strength. After learning that Aegir only knows how to kill, Lucy lets him stay at her house, educating and taking care of him. Two years pass, and on the day of Aegir’s departure, they both exchange a promise that if Aegir becomes a king and owns the land of Erg forest, he can come and take her as his woman. Making this his life goal, Aegir set out on a journey to become a hero, a king, and found his own kingdom.

    Oukoku e Tsuzuku Michi - Dorei Kenshi no Nariagari Eiyuutan
  • Ikuo Ryuuzaki and Danno Tatsuya are 2 orphaned boys who were looked after by a man they called 'sensei'. Following their sensei's brutal murder, the two vow to hunt down his killers and the police officers who neglected to properly investigate the case. 15 years later, Ryuuzaki is a police detective and Tatsuya has become the leader of a group of mobsters. Helping each other out behind the scenes, they strive to rise to the tops of their respective fields so that they may exact their vengeance.

    Ouroboros
  • A mysterious command arrives from a "King"----- The life-threatening "Game" has now begun for the 32 students of the first year's B Class. One day, all of the students in Nobuaki's class received their first message from someone calling themselves the "King", in which was written a baffling command. That first command was very easy. However, the commands began to escalate until a life-threatening game had begun--- Failing to obey the orders leads to death!! Their friendships are being undermined by a bottomless terror!!

    Ousama Game
  • 18-year-old Koreeda Kazuki is a virtuoso programmer whose just genuine expertise lies with PCs. Into his heedless life steps Sakai Daisuke, a well off man who makes him a recommendation he discovers difficult to cant: that he will end up being Koreedas financial specialist depending on the prerequisite that Koreeda utilize his capacities to enable him "to overcome the world." In the internet where national outskirts hold no importance, in this way starts the tale of two cutting edge explorers who remain against wrongdoing on a worldwide scale.

    Ousamatachi no Viking