Seinen เซ็นเน็น

Oriental Clinic Miracles

Origin

Oritsu Maho Gakuen no Saika-sei~ Hinkon-gai (Suramu) Agari no Saikyo Maho-Shi, Kizoku-darake no Gakuen de Muso Suru~

Oroka na Tenshi wa Akuma to Odoru

Osaka

Osaka Madam, Koukyuu-hi ni Naru!

Osananajimi Kanojo no Morahara ga Hidoin de Zetsuen Sengen shite Yatta

Osananajimi ni najimitai

Osen

Oshi no Ko

Oshi V ga Oshiego de Watashi ga Mama de!?

Otome Monster Caramelize

Otome no Teikoku

Ottoman

Oukoku e Tsuzuku Michi – Dorei Kenshi no Nariagari Eiyuutan

Our Complication

Outreijou

Over Rev!

Overpowered Healer

Oyasumi Punpun

Paladin