| Onee-chan ga Kita |
2010 |
2+ |
- |
| Onegai Twins |
2005 |
1 |
- |
| Oneichan To Issho |
2004 |
5 |
- |
| Onidere |
2008 |
4+ |
- |
| Onihime VS |
2010 |
4 |
6 (1) |
| Onii-Chan Control |
2009 |
5 |
- |
| Onii-chan wa Oshimai! |
2017 |
1 |
- |
| Only One |
2012 |
1 |
- |
| Onna Yûsha to Shota Orc |
2019 |
1+ |
- |
| Onnanoko Atsumare! |
1970 |
1 |
- |
| Onsen Yôsei Hakone-chan |
2012 |
2+ |
- |
| Ontama |
2009 |
2 |
- |
| Oogata Shinjin No Kyouikukei |
2015 |
1 |
- |
| Ookami Heika No Hanayom |
2009 |
14+ |
- |
| Ookamidomo No Shitsukekata |
2011 |
1 |
- |
| Ookiku Furikabutte |
2004 |
26+ |
- |
| Open 24 hours a day |
2009 |
1 |
- |
| Opération Mort |
1995 |
1 |
- |
| Opération Santa |
2008 |
4 |
- |
| Orange (Takano Ichigo) |
2012 |
6 |
- |
| Orange Chocolate |
2008 |
10+ |
- |
| Orange Delivery |
2004 |
4 |
- |
| Orange Marmalade |
2011 |
8 |
- |
| Orange Yellow |
2010 |
1 |
- |
| Order Wa Boku De Yoroshii Desu Ka? |
2007 |
1 |
- |
| Ore dake Haireru Kakushi Dungeon |
2017 |
5+ |
- |
| Ore ga Heroine o Tasukesugite Sekai ga Little Mokushiroku!? |
2011 |
1+ |
- |
| Ore Ga Ojô-Sama Gakkô Ni "Shomin Sample" Toshite Rachirareta Ken |
2012 |
9+ |
- |
| Ore ga Suki nano wa Imôto dakedo Imôto ja nai |
2017 |
1+ |
- |
| Ore ni Koi Shite Dôsunda |
2007 |
1 |
- |
| Ore no Imôto ga Konna ni Kawaii Wake ga Nai |
2008 |
2+ |
- |
| Ore no Kanojo to Osananajimi ga Shuraba Sugiru |
2011 |
7 |
- |
| Ore Ride!! |
2013 |
1 |
- |
| Ore Wo Suki Nano Wa Omae Dake Ka Yo |
2017 |
3+ |
- |
| Orenchi no Furo Jijō |
2011 |
8 |
- |
| Orera Kourin! |
2009 |
3 |
- |
| Orichalcum Reycal |
2008 |
3+ |
- |
| Oroka Na Tenshi Wa Akuma To Odoru |
2016 |
12+ |
- |
| Oruchuban Ebichu |
1997 |
9 |
- |
| Osaka Hamlet |
2006 |
3+ |
- |
| Osake Wa Fûfu Ni Natte Kara |
2015 |
6+ |
- |
| Osananajimi ga Zettai ni Makenai LoveCome |
2019 |
2+ |
- |
| Oshi ga Budôkan Ittekuretara Shin |
2015 |
6+ |
- |
| Oshi No Ko |
2020 |
10+ |
- |
| Oshiete! Galko-chan |
2014 |
1 |
- |
| Oshikiri Rensuke Gekijou Masashi!! Ushiro da!! |
2005 |
1 |
- |
| Oshioki Ôji |
2012 |
1 |
- |
| Osomatsu-kun |
1962 |
34 |
- |
| Osomatsu-san |
2016 |
10 |
- |
| Ossu! Mushikings!! |
2006 |
1+ |
- |
| Otaku Club |
2007 |
1 |
- |
| Otaku Girls |
2006 |
7 |
8 (1) |
| Otaku no Musume-San |
2006 |
5+ |
- |
| Otaku Otaku |
2014 |
5+ |
- |
| Otenki Onesan |
1992 |
8 |
- |
| Otogi no Machi no Rena |
2002 |
7 |
- |
| Otogi Taisen Fantasma |
2013 |
3 |
- |
| Otokomae! Beads Club |
2004 |
1 |
- |
| Otome Game |
2017 |
7+ |
- |
| Otome No Teikoku |
2010 |
14+ |
- |
| Otome Ôji |
2008 |
1 |
- |
| Otome wa Boku ni Koishiteru: Futari no Elder |
2010 |
3 |
- |
| Otome Yôkai Zakuro |
2006 |
4+ |
- |
| Otomege Sekai wa Mob ni Kibishii Sekai Desu |
2018 |
7+ |
- |
| Otomegokoro |
2008 |
2 |
- |
| Otomen |
2007 |
18 |
- |
| Otonohako |
2008 |
1 |
- |
| Out (Mizuta Makoto) |
2012 |
15+ |
- |
| Outbreak Company: Moeru Shinryakusha |
2012 |
1+ |
- |
| Outlanders |
1986 |
8 |
- |
| Outlaw Players |
2016 |
1+ |
- |
| Outlaw Star |
1997 |
3 |
- |
| Over Drive |
2005 |
1+ |
- |
| Owa Rande! |
2011 |
1 |
- |
| Owaranai Koi no Tame ni |
1996 |
1 |
- |
| Owari to Hajimari no Mairusu |
2008 |
1+ |
- |
| Oyaji no Aijin to Kurasu Ore |
2014 |
3 |
- |
| Oyasumi Jack the Ripper |
2015 |
1+ |
- |
| Oyasumi Scheherazade |
2018 |
4+ |
- |
| Oyoneko Boonyan |
1983 |
1 |
- |
| Oz to Elza |
2015 |
2 |
- |
| Ozanari-kun |
2012 |
1 |
- |
| P-pan Kuru |
2008 |
1 |
- |
| Paaman |
1967 |
4 |
- |
| Pajama na Kanojo |
2012 |
2+ |
- |
| Palais |
2002 |
27 |
- |
| Palepoli |
1996 |
1 |
- |
| Pan De Peace! |
2014 |
1+ |
- |
| Pan'Pan Panda, une vie en douceur |
2008 |
8 |
- |
| Pandora (Nemu Yoko) |
2010 |
1 |
- |
| Pandora Hearts |
2006 |
24 |
9.4 (5) |
| Panty & Stocking with Garterbelt |
2010 |
1 |
- |
| Papa est une Licorne |
2018 |
1 |
- |
| Papillon |
2006 |
8 |
- |
| Papuwa |
2002 |
14 |
- |
| Par-delà les Etoiles |
2013 |
1 |
- |
| Paradise Residence |
2014 |
4 |
- |
| Paradox Blue |
2008 |
5 |
- |
| Parallel |
2001 |
4 |
- |
| Parfait Tic ! |
2000 |
22 |
- |
