[Oyama Yasunaga] Oyama Yasunaga Jisen Kessaku Shuu [Digital]
(C63) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Piano Lesson (The Big O) [English] [biribiri]
(CR29) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Akuma ga Kitarite Koshi o Furu (Devilman) [Chinese] [超能汉化组]
[Oyama Yasunaga] Fuufu Koukan Game | 夫婦交姦性遊戲 [Chinese]
[Oyama Yasunaga] Fuufu Koukan Game -Shumatsuu no Inen- | 夫婦交姦性遊戲 -終末的淫宴- [Chinese]
[Oyama Yasunaga] Etsuraku no Shima [Chinese]
[Oyama Yasunaga] Gesu Dakeshika Inai Machi
(CR36) [Koutarou With T (Koutarou, Oyama Yasunaga, Tecchan)] Girl Power Vol. 19 (Various)
[Oyama Yasunaga] Off-Pako! Otome ga Shoujo o Ushinau Hi [Digital]
[Oyama Yasunaga] Bukkake [Digital]
(C67) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Eroika (Kaleido Star)
[Oyama Yasunaga] Eggu ~Chou Ero Gal Shijou Shugi~ [Digital]
[Oyama Yasunaga] Ingoku Gakuen [Digital]
(COMIC1☆4) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Yarudora - Otsukare Sampaguita hen (Toradora!) [Chinese] [随手汉了个化]
(C63) [Comic Kingdom (Koyama Unkaku, Oyama Yasunaga, Tecchan)] Orange Road Sex (Kimagure Orange Road)
[Oyama Yasunaga] Bitch ~ Nousatsu Geki Erogyaru Zukan ~ [Digital]
[Oyama Yasunaga] Saimin Dorei ~Semarikuru Gifu no Inbou (7~8 Set) [Digital]
[Oyama Yasunaga] Saimin Dorei ~Semarikuru Gifu no Inbou (4~6 Set) [Digital]
[Oyama Yasunaga] Shakkin Shoujo Dorei [Digital]
[Oyama Yasunaga] Saimin Dorei ~Semarikuru Gifu no Inbou (1~3 Set) [Digital]
[Oyama Yasunaga] Saimin Dorei ~Semarikuru Gifu no Inbou (3) [Digital]
[Oyama Yasunaga] Saimin Dorei ~Semarikuru Gifu no Inbou (2) [Digital]
(C82) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Kamogawa Hyper Chargers (Rinne no Lagrange)
[Oyama Yasunaga] Shachiku Joshi Kabushiki Gaisha [Digital]
[Oyama Yasunaga] Gokukan Website [English] [Manga Reborn] [Digital]
[Oyama Yasunaga] Gokukan Website [Digital]
[Oyama Yasunaga] Ryoujoku Shihai [Digital]
[Oyama Yasunaga] Saimin Dorei ~Semarikuru Gifu no Inbou (1) [Digital]
[Oyama Yasunaga] Fuufu Koukan Game -Shumatsuu no Inen- [Chinese]
[Oyama Yasunaga] Fuufu Koukan Game [Chinese]
[Oyama Yasunaga] Yarippanashi 100 Renpatsu!
[Akiba Maou (Akiha@, Ikegami Ryouichi, Oyama Yasunaga, Tecchan)] Senshadou no Musumetachi ga Hiwai na Bitch ni Shiagarimashita (Girls und Panzer) [Digital]
(CR36) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Eroika. (Kaleido Star)
(CSP4) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Sora Kara Koboreta Sugoi Shiru (Kaleido Star)
(C65) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Dokodemo♪ Friend (SEX FRIEND)
[Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Yuriika. (Kaleido Star)
[Oyama Yasunaga] Goukan Eigakan
[Oyama Yasunaga] Nukeru Karada
(C73) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi o shiyou. 03 (Ouran High School Host Club) [English] [SaHa]
(C63) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Piano Lesson (The Big O)
(COMIC1☆4) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Yarudora - Otsukare Sampaguita hen (Toradora!)
(C78) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Occult Q (Occult Academy)
(C79) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] SNAKEY x MONKEY (Bakemonogatari)
[Oyama Yasunaga] Slave Rape
(C77) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Mega × Dora! 02 (Toradora!)
[Oyama Yasunaga] Shoujo Hatsutaiken Relay
(C70) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi Oshiyou. (Ouran High School Host Club)
(C73) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi Oshiyou. 03 (Ouran High School Host Club)
(C71) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Maihama Vice (Zegapain)
(SC33) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi Oshiyou. 02 (Ouran High School Host Club)
(C58) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Shimai Zaka - Sister Slope (Kizuato)
[Oyama Yasunaga] Shoujo Idol Goukan
(C65) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Grand Canyon no Sugoi Yuri (Kaleido Star)
[Oyama Yasunaga] Chitsunai Renzoku Chuunyuu
[Oyama Yasunaga] Kichiku Kazoku
[Oyama Yasunaga] Puff Puff Parfait
[Oyama Yasunaga] Seifuku Shoujo Jiru
[Oyama Yasunaga] Joshikousei Rinkan
[Oyama Yasunaga] Dokkin Clinic
[Oyama Yasunaga] Oyaman
[Oyama Yasunaga] Costume Play Magician
[Oyama Yasunaga] Yarippanashi Hyakurenpatsu
[Oyama Yasunaga] Iyarashii Hanashi
[Oyama Yasunaga] Nupu Nupu Nuppun
[Oyama Yasunaga] Seifuku Shojo Tengoku
[Oyama Yasunaga] Seiyoku Shori Kyoushitsu
[Oyama Yasunaga] Moeyo Boinken!
(C57) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Onna Darake no Okinawa Summit (Various)
[Oyama Yasunaga] Oyako Choukyou Houmon | Mother Daughter Training Visit
[Oyama Yasunaga] Gesu dake shika Inai Machi [Chinese]
(C74) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Tome to Ojousama (Nijuu Mensou no Musume)
(SC33) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi o Shiyou. 02 (Ouran High School Host Club) [English] [SMDC]
[Oyama Yasunaga] Fuufu Koukan Game ―Shumatsuu no Inen― [Digital]
[Oyama Yasunaga] Fuufu Koukan Game [Digital]