Action

Ode to Humanity: Earthlings, Rise! (Colored)

Ogre Slayer

Omniscient Reader

One Piece

One Piece (Colored)

Orcsen Oukokushi: Yaban na Orc no Kuni wa, Ikani Shite Heiwa na Elf no Kuni wo Yakiharau ni Itatta ka

Outlanders

Outlaw Star

Overlord

Oversleeping Takahashi