Our Last Crusade or the Rise of a New World
Oniichan no Koto nanka Zenzen Suki ja Nai n da kara ne!! Special
Orange: Mirai
Otaku no Video
Our Dating Story: The Experienced You and The Inexperienced Me
Ore no Imouto ga Konnani Kawaii Wake ga Nai.
ORESUKI Are you the only one who loves me? - Our Playball / Our End Run / Our Game
Oreshura
One: Kagayaku Kisetsu e
ORESUKI Are you the only one who loves me? - I Politely Move Things Forward
Onmyoji
Onihei