Action

Ore wa Subete o “Parry” Suru: Gyaku Kanchigai no Sekai Saikyou wa Boukensha ni Naritai

Osananajimi wa Yami Ochi Seijo!

Oshikake Assassin-chan wa Outo Saikyou no Kanban Musume

Ossan Boukensha no Okureta Eiyuu-tan – Kansha no Suburi o 1 nichi 1 man Kaishite itara, Kensei ga Deshi-iri Shigan ni Yatte Kita

Ossan Isekai de Saikyou ni Naru: Butsuri Tokka no Kakusei-sha

Other World Warrior

Others level up, I cultivate—emerging only at Great Ascension

Otherworldly Evil Monarch

Otherworldly Magical Daoist Priest

Otherworldly Skeleton Evolution

Otoko Ippiki Gaki Daishou

Otome Game no Heroine de Saikyou Survival

Otome Sensou

Otr of the Flame

Our Resident Exorcist

Out (Makoto Mizuta)

Outdays

Ovcharka

Over Rev!

Overbearing Tyrant

Overgeared

Overlord of Insects

Overmortal

Overpowered at 1 HP

Overpowered Healer

Overpowered Sword

Overwatch: Undivided

Oyasai Rebellion