Yaoi
Notpia- Nude Na Shisen
- Oaji Wa Dou Desu Ka?
- Obocchama Ni Wa Wakarumai
- Oboreru Kemono No Koibito
- Ochibure Shinshi Ni Ai No Uta
- Obou-Chama No Yarutoori
- Okubyou Na Junjou
- Fuhoni!
- Fujimi Orchestra
- Never Complex
- Tenshi No Parabola
- Fukuin
- Fukujuu No Gakuen
- Saikkyou Lover
- Okujou Fuukei
- Omerta - Kochou No Yume No Kate
- Omoi Shire
- Omoi To Jikkan To Sono Mukou
- Omoikkiri Suki Ni Natte!
- Omoisugoshi Mo Koi No Uchi
- On (Kurosaki Rendou)
- On The Quiet
- One Heart
- Furachi Na Ai No Uta
- Oni Ni Hatsujou
- Renai Dokusenyoku
- Furue Tsumore Shiawase No Hana
- Furueru Yoru No Himitsugoto
- Only One (Moegi Yuu)
- Onsen Tarzan
- Open Air
- Orangenia Na Hibi
- Ore No Mune De Sake
- Ore No Shita De Agake
- Ore No Tenshi Wa Mayonaka Akuma
- Ore Wa Koi No Haousama
- Orera Koi Ni Zenryoku
- Oresama Gattai Keikaku
- Oresama Na Aitsu
- Oresama Tengoku!
- Samenai Yume
- The Summit
- Kiss Wa Ichinichi Sando Made!?
- Oresama To Oujisama
- Oresama Wa Koi No Dorei
- Oresama Wo Kurae!
- Organic
