Our Last Crusade or the Rise of a New World
Orange: Mirai
Osamake: Romcom Where The Childhood Friend Won't Lose
Otoboku: Maidens are Falling for Me! Special
Ore no Imouto ga Konnani Kawaii Wake ga Nai. Specials
Origin: Spirits of the Past
Ouran High School Host Club
ORESUKI Are you the only one who loves me? - Our Playball / Our End Run / Our Game
ORESUKI Are you the only one who loves me?
OniAi
Ore no Imouto ga Konnani Kawaii Wake ga Nai Specials
ORESUKI Are you the only one who loves me? - I Politely Move Things Forward