Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?
Otome wa Boku ni Koishiteru: Futari no Elder The Animation
Onihei
Only Yesterday
Orb: On the Movements of the Earth
Otoboku: Maidens are Falling for Me!
Origin: Spirits of the Past
Orange: Mirai
One: Kagayaku Kisetsu e
Over the Sky
Overtake!
Orange