OniAi
Oreshura
Outbreak Company
Onigiri
Osomatsu-san: Tamashii no Takoyaki Party to Densetsu no Otomarikai
Ore no Imouto ga Konnani Kawaii Wake ga Nai.
Osamake: Romcom Where The Childhood Friend Won't Lose
Oneechan ga Kita: Hajimete no… Kitaa!
Otoboku: Maidens are Falling for Me! Special
Outburst Dreamer Boys: It Is the Destiny of Those Born as Men
Onipan!
Ore no Imouto ga Konnani Kawaii Wake ga Nai Specials