Ookami Kodomo no Ame to Yuki
Ookami to Koushinryou
Ookami to Koushinryou II
Ookami to Koushinryou: Merchant Meets the Wise Wolf
Ooyukiumi no Kaina
Ore dake Haireru Kakushi Dungeon
Ore wa Subete wo "Parry" suru: Gyaku Kanchigai no Sekai Saikyou wa Boukensha ni Naritai
Ore, Twintail ni Narimasu.
Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?
Orient
Orient: Awajishima Gekitou-hen
Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta
Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta… OVA
Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta… X
Otome Game no Hametsu Flag shika Nai Akuyaku Reijou ni Tensei shiteshimatta… X: Unmei no Hito ni Deatte Shimatta…
