Seinen

Otonari Voice Chat

Otoyomegatari

Ottoman

Oujougiwa No Imi O Shire!

Oukoku E Tsuzuku Michi

Ouritsu Mahou Gakuen no Saikasei: Slum Agari no Saikyou Mahoushi, Kizoku darake no Gakuen de Musou suru

Out (MIZUTA Makoto)

Outcast

Outreijou

Overlord New World