Oomuro-ke: Dear Sisters
OniAi
Osamake: Romcom Where The Childhood Friend Won't Lose
Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?
Ore ga Suki nano wa Imouto dakedo Imouto ja Nai Specials
One-Punch Man Season 2
Overlord Movie: Ple Ple Pleiades
Otoboku: Maidens are Falling for Me! Special
Only Yesterday
Ore no Imouto ga Konnani Kawaii Wake ga Nai Specials
Onimai: I'm Now Your Sister!
Owarimonogatari 2nd Season