Oni Chichi: Re-born

Oni Chichi: Refresh

Oni-Tensei

Onmyouji

Onmyouji: Ayakashi no Megami

Onna Kyoushi: Nikutai Jugyou

Oshioki: Gakuen Reijou Kousei Keikaku

Oyomesama Honey Days

Perverse Investigations

Private Psycho Lesson

Reijou Caster: Ingyaku no Wana

Rin x Sen + Ran->Sem: Cross Mix