Seinen

Night Hospital

Non-Ability Fighter

Nozoki Ana

Odds GP!

Odyssey

Ojisan to Jyoshikosei

Okawari Hanzou

Omega Tribe Kingdom

One’s In-Laws Virgins

Oogami-san, Dadamore desu

Ore no Genjitsu wa Ren’ai Game ka to Omottara Inochigake no Game datta

Oretama (My Balls)

Origin

Osaka

Osananajimi ni najimitai

Osen

Overpowered Healer

Oyasumi Punpun

Parabellum

Parallel Paradise

Perfect Half