Action

Otome Game no Heroine de Saikyou Survival

Ottoman

Ougon Bat (YAMANE Kazutoshi)

Ougon no Keikenchi

Oujo Denka wa Oikari no you desu

Oukoku e Tsuzuku Michi

Oukoku no Saishuu Heiki, Rettousei to shite Kishi Gakuin e

Outo no Gakuen ni Kyousei Renkou Sareta Saikyou no Dragon Rider wa Chou ga Tsukuhodo Inakamono

Overgeared (Team Argo)

Overlord