Origin: Spirits of the Past
Otoboku: Maidens are Falling for Me!
Onmyoji
Orange
Overtake!
Only Yesterday
One: Kagayaku Kisetsu e
Our love has always been 10 centimeters apart.
Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?
Otaku no Video
Otome wa Boku ni Koishiteru: Futari no Elder The Animation
One Week Friends