ORESUKI Are you the only one who loves me? - I Politely Move Things Forward
Oneechan ga Kita: Hajimete no… Kitaa!
Oreshura
Orphen
Oomuro-ke: Dear Friends
Operation Han-Gyaku-Sei Million Arthur 2nd Season
Otaku Elf
One Punch Man: Road to Hero
Onimai: I'm Now Your Sister!
Owarimonogatari
Ore ga Suki nano wa Imouto dakedo Imouto ja Nai Specials
Ore no Imouto ga Konnani Kawaii Wake ga Nai.