Ecchi

Nukitashi: Nukige Mitai na Shima ni Sunderu Watashi wa Dou Surya Ii desu ka?

Old in Age, Young at Heart

Old Man with the Evil Eye: An Unimpressive Thirty-Something's Harem Dominance

Onegai, Nugashite.

Oppa Husband

Ori no Naka

Osen

Pathetic Sunbae

Please Go Home, Miss Akutsu!

Precarious Woman Executive Miss Black General