Onegai☆Teacher: Himitsu na Futari
Onegai☆Teacher: Himitsu na Futari

Kei and Mizuho are having some marital difficulties, and Mizuho's family decides it's high time for...

Onigiri
Onigiri
Onigiri

Onigiri thrusts its players into mystical Japan, a land filled with mythical creatures of Japanese l...

Only Yesterday
Only Yesterday
Only Yesterday

Omoide Poroporo is the story of Taeko Okajima, a twenty-something woman currently working as an offi...

Ookami to Koushinryou II: Ookami to Kohakuiro no Yuuutsu
Ookami to Koushinryou II: Ookami to Kohakuiro no Yuuutsu

Holo, Lawrence, and Nora sit down to have dinner together, but Holo's dislike for Nora prevents her...

orange
orange
Orange

One day, Naho Takamiya receives a letter written to herself from ten years in the future. As Naho re...

Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?
Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?
Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?

An OVA bundled with the non-adult version of the OreTsuba PC game. The OVA has more fan service than...

Origin: Spirits of the Past
Origin: Spirits of the Past
Giniro no Kami no Agito

A failed DNA experiment with plants has changed the world forever. Having demolished the moon, the i...

Orphen
Orphen
Majutsushi Orphen

Six years ago at the magic school known as the Tower of Fang, a grave accident happened involving th...

Orphen 2: Revenge
Orphen 2: Revenge
Majutsushi Orphen: Revenge

Orphen and his gang has set out on an all new adventure with many monsters to battle and no peace an...

Otogi Zoshi: The Legend of Magatama
Otogi Zoshi: The Legend of Magatama
Otogizoushi

The year is 972 A.D. in Kyoto, the capital of ancient Japan. Kyoto is becoming a corrupt and run-dow...

Our Last Crusade or the Rise of a New World
Our Last Crusade or the Rise of a New World
Kimi to Boku no Saigo no Senjou, Aruiwa Sekai ga Hajimaru Seisen

Embroiled in a hundred-year war, young Iska is sent to assassinate the Ice Calamity Witch, Alicelies...

Ouran High School Host Club
Ouran High School Host Club
Ouran Koukou Host Club

Fujioka Haruhi wins a scholarship to attend Ouran Academy, a school reserved for only the most rich...

Outbreak Company
Outbreak Company
Outbreak Company

Having a light novel author father and an eroge illustrator mother, Kanou Shinichi is a thoroughbred...

Outlanders
Outlanders

In the midst of a violent invasion of Earth by unknown alien forces, photojournalist Wakatsuki Tetsu...

Outlaw Star
Outlaw Star
Outlaw Star

In the distant future, after humans left earth and started colonizing other planets, there lives a m...

Overlord
Overlord

The final hour of the popular virtual reality game Yggdrasil has come. However, Momonga, a powerful...

Overlord II
Overlord II
Overlord II

The second season of Overlord.

Continuing his quest to rule this new world, Ains begi...

Overlord III
Overlord III

Third season of Overlord.

Overman King Gainer
Overman King Gainer

Sometime in the distant future, mankind is forced to live in domed cities while the rest of the worl...