Owarimonogatari
Oneechan ga Kita
Our Dating Story: The Experienced You and The Inexperienced Me
Operation Han-Gyaku-Sei Million Arthur
Ore ga Suki nano wa Imouto dakedo Imouto ja Nai Specials
Overlord: Ple Ple Pleiades
Origin: Spirits of the Past
One Punch Man: Road to Hero
Orphen 2: Revenge
Orange: Mirai
One Punch Man Specials
Oneechan ga Kita: Hajimete no… Kitaa!