S
Orefeti- Orfina
- Orokamono No Koi
- Oshiire Kara Ai O Komete
- Oton
- Otona No Shoumei
- Princess Lover! - Pure My Heart
- Over Time
- Oyaji
- Oyayubi Hime
- Pantser Princess
- River's Edge
- Papi Nyang
- Parallel
- Penguin Brothers
- Penguin Musume
- Penguin Prince
- Peony Pavilion
- Peshi
- Pet Diary
- Phantom Wizard
- Pharaoh No Haka
- Photo Kano - Sweet Snap
- Photo Kano - Your Eyes Only
- Plastic Girl
- Platina
- Playboy No Hatsukoi
- Portball!
- Potion Mania
- Princess Hanaka
- Princess Nightmare
- Proclaiming And Loving
- Propose No Riyuu
- Purgatorial Queen
- Qi Dan Qu
- Rabu Kare - Gokujou Men Dokuhon!
- R18!
- Raiders
- Random Walk
- Ranobe No Hen!
- Rasen No Vamp
- Re-Agree: Apostle's Contract
- Reikan Shouhou Kabushikigaisha
- Saitama Chainsaw Shoujo
- Renai Demo Classic
- Renai Joujou
- Renren Zakari
- Returners - Aka No Kikansha
