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  • Watch Oban Star-Racers online

    Oban Star-Racers

    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… [More]
    Status: Completed Released: 2006 Rating: 8.88/10 (17 Votes)
  • Watch Occult Academy online

    Occult Academy

    The story revolves around Maya - The daughter of the Former head Master of a private Japanese academy dedicated to the study of the occult who died in 1999, and… [More]
    Status: Completed Released: 2010 Rating: 9.32/10 (19 Votes)
  • Watch Oda Nobuna No Yabou online

    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… [More]
    Status: Completed Released: 2012 Rating: 9.83/10 (242 Votes)
  • Watch Oh! Edo Rocket online

    Oh! Edo Rocket

    In Edo during the mid-1800's, fireworks maker Seikichi Tamaya and his friends struggle to live under the harsh frugality laws imposed by the strict city magistrate, which ban all luxuries,… [More]
    Status: Completed Released: 2007 Rating: 7.67/10 (3 Votes)
  • Watch Ojamajo Doremi Dokkaan! online

    Ojamajo Doremi Dokkaan!

    Hana now becomes a peer of the Ojamajo. When Majotourbillon's spirit revives, the witches now have to break her curse. From the help from Pao-chan, Doremi, Hana, and the other… [More]
    Status: Completed Released: 2002 Rating: 7.75/10 (4 Votes)
  • Watch Omamori Himari online

    Omamori Himari

    The slapstick romantic comedy centers around an ordinary 16-year-old high school boy named Youto Amakawa who is protected by a spirit — specifically, a beautiful, sword-wielding cat girl spirit named… [More]
    Status: Completed Released: 2010 Rating: 9.67/10 (137 Votes)
  • Watch One Off OVA online

    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… [More]
    Status: Completed Released: 2012 Rating: 7.75/10 (4 Votes)
  • Watch One Outs online

    One Outs

    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… [More]
    Status: Completed Released: 2008 Rating: 9.7/10 (54 Votes)
  • Watch One Piece online

    One Piece

    A story about Monkey D. Luffy, who wants to become a real pirate. In a world of mystical, those who eat mystical fruit will gain its true power but also… [More]
    Status: Ongoing Released: 1999 Rating: 9.76/10 (4001 Votes)
  • Watch One Piece Special online

    One Piece Special

    The Straw Hats encounter a city in the middle of a whirlpool, called the Ocean's Navel, that is being destroyed by giant monsters. These monsters supposedly protect a treasure capable… [More]
    Status: Completed Released: 2000 Rating: 9.4/10 (128 Votes)
  • Watch Onee-chan ga Kita online

    Onee-chan ga Kita

    The story revolves around Tomoya Mizuhara, a 13-year-old boy who suddenly gains a big sister when his father remarries. 17-year-old Ichika is a little strange, and her affection for Tomoya… [More]
    Status: Completed Released: 2013 Rating: 9.38/10 (32 Votes)
  • Watch Onegai My Melody: Kuru Kuru Shuffle! online

    Onegai My Melody: Kuru Kuru Shuffle!

    A continuation of Onegai My Melody. [More]
    Status: Completed Released: 2006 Rating: 7/10 (3 Votes)
  • Watch Onegai Teacher online

    Onegai Teacher

    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.… [More]
    Status: Completed Released: 2002 Rating: 9.73/10 (56 Votes)
  • Watch Onegai Twins online

    Onegai Twins

    Maiku Kamishiro's past has always been somewhat of a mystery to him. The only clue he has to who is family might be is an old photograph showing two young… [More]
    Status: Completed Released: 2003 Rating: 9.71/10 (17 Votes)
  • Watch OniAi online

    OniAi

    Himenokouji twins Akito and Akiko have finally reunited with each other after separation due to the death of their parents. After six years of living apart they suddenly began to… [More]
    Status: Completed Released: 2012 Rating: 9.7/10 (57 Votes)
  • Watch Onii-chan no Koto Nanka Zenzen Suki Janain Dakara ne!! online

    Onii-chan no Koto Nanka Zenzen Suki Janain Dakara ne!!

    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… [More]
    Status: Completed Released: 2011 Rating: 8.48/10 (25 Votes)
  • Watch Onmyou Taisenki online

    Onmyou Taisenki

    All his life, Riku Tachibana has been raised by his grandfather. For some reason, the old man has always been fond of strange hand gestures, and they've rubbed off on… [More]
    Status: Completed Released: 2004 Rating: 9.8/10 (5 Votes)
  • Watch Ookami Kakushi online

    Ookami Kakushi

    The story follows Hiroshi Kuzumi, a 16-year-old boy who has just moved to the seemingly serene village of Jogamachi. Nestled in the mountains far away from the city, the village… [More]
    Status: Completed Released: 2010 Rating: 9.84/10 (19 Votes)
  • Watch Ookami-san to Shichinin no Nakama-tachi online

    Ookami-san to Shichinin no Nakama-tachi

    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… [More]
    Status: Completed Released: 2010 Rating: 9.78/10 (60 Votes)
  • Watch Ookiku Furikabutte – Big Windup! online

    Ookiku Furikabutte – Big Windup!

    Mihashi Ren is the quirky ace pitcher of Nishiura high school's newly formed baseball team. He, however, has hit rock-bottom in terms of confidence and self-belief, thanks to a traumatic… [More]
    Status: Completed Released: 2007 Rating: 9.11/10 (27 Votes)
  • Watch Ore-sama Kingdom online

    Ore-sama Kingdom

    The story centers on Nonoha Nonohara, a young manga artist who just enrolled in a new school. She finds herself surrounded by a group of three "super-cute" guys. [More]
    Status: Completed Released: 2012 Rating: 9.83/10 (6 Votes)
  • Watch Ore-tachi ni Tsubasa wa Nai online

    Ore-tachi ni Tsubasa wa Nai

    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… [More]
    Status: Completed Released: 2011 Rating: 9.14/10 (21 Votes)
  • Watch Oreca Battle online

    Oreca Battle

    Orega Fire, the young, Oreca-loving main character. One day a mysterious treasure chest that has the power to summon monsters into this realm appears. His name is none other than… [More]
    Status: Ongoing Released: 2014 Rating: 8.8/10 (15 Votes)
  • Watch Oregairu online

    Oregairu

    This romantic comedy revolves around an antisocial high school student named Hikigaya Hachiman with a distorted view on life and no friends or girlfriend. When he see his classmates talking… [More]
    Status: Completed Released: 2013 Rating: 9.83/10 (519 Votes)
  • Watch Oreimo online

    Oreimo

    For several years, Kyousuke's relationship with his younger sister Kirino has been cold, to the point that they only share greetings. But one day, Kyousuke finds a moe anime DVD… [More]
    Status: Completed Released: 2010 Rating: 9.34/10 (141 Votes)