Origin: Spirits of the Past
Onihei
Onmyoji
Otaku no Video
Otome wa Boku ni Koishiteru: Futari no Elder The Animation
Orange: Mirai
Overtake!
Only Yesterday
One: Kagayaku Kisetsu e
Orange
Our love has always been 10 centimeters apart.
Otoboku: Maidens are Falling for Me!