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