[Oyama Yasunaga] Kahanshin Jugyou - Teaching About the Lower Half of the Body
Gaticomi Vol.42
[Oyama Yasunaga] Dokkin Clinic
COMIC Magnum Vol. 38
(C50) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Iinchou Tottemo Guai Ga Iinchou (Neon Genesis Evangelion)
[Oyama Yasunaga] Fuufu Koukan Game | 夫婦交姦性遊戲 [Chinese]
Fuufu Koukan Game
[Oyama Yasunaga] Saimin Dorei ~Semarikuru Gifu no Inbou (1) [Digital]
Men's Gold 2015-11
COMIC Ananga Ranga Vol. 72
(C58) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Shimai Zaka - Sister Slope (Kizuato)
Men's Gold 2016-11
COMIC Magnum Vol. 47
[Koutarou] B☆B☆IDOL expansion!!
COMIC Ananga Ranga Vol. 56
(C70) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Fujioka Haruhi to Ecchi o Shiyou. (Ouran High School Host Club) [English] [constantly]
[Oyama Yasunaga] Eggu ~Chou Ero Gal Shijou Shugi~ [Digital]
Saimin Dorei ~Semarikuru Gifu no Inbou
Comic Mate 2007-02
Himitsu no Ehon Akazukin-chan -Ijiwaru Shinaide...-
COMIC Magnum Vol. 41
Gaticomi Vol.55
COMIC Ananga Ranga Vol. 11 [Digital]
COMIC Ananga Ranga Vol. 32
(CR33) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Neko no Ishu-gaeshi (The Cat Returns)
[Oyama Yasunaga] Gokukan Website [Digital]
[Koutarou] B☆B☆IDOL
[Akiba Maou (Various)] Senshadou no Musumetachi ga Hiwai na Bitch ni Shiagarimashita | The Daughters of The Tank Way Were Finished in Indecent Bitsch. (Girls und Panzer) [English] [n0504] [Digital]
COMIC Ananga Ranga Vol. 78
Men's Gold 2015-05
(C74) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Tome to Ojousama (Nijuu Mensou no Musume)
[Oyama Yasunaga] Etsuraku no Shima [Digital]
Mai Shield 21
COMIC Ananga Ranga Vol. 40
Men's Gold 2009-01
COMIC Magnum Vol. 49
(C67) [Koutarou With T (Koutarou, Oyama Yasunaga, Tecchan)] GIRL POWER vol.20 (CAPCOM)
Men's Gold 2016-11 [Digital]
[Oyama Yasunaga] Gesu Dakeshika Inai Machi
(C82) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Kamogawa Hyper Chargers (Rinne no Lagrange)
COMIC Ananga Ranga Vol. 80
[Oyama Yasunaga] Himitsu no Ehon Akazukin-chan -Ijiwaru Shinaide...- (1)
Comic Magnum Vol.15 [Digital]
Gaticomi Vol. 49
[Oyama Yasunaga] Costume Play Magician
[Oyama Yasunaga] Kageki Ryoujoku!! | An excessive rape!!
Comic Hime Dorobou 2007-11
COMIC Magnum Vol. 35
(CR36) [Koutarou With T (Koutarou, Oyama Yasunaga, Tecchan)] Girl Power Vol. 19 (Various)
[Oyama Yasunaga] Shakkin Shoujo Dorei [Digital]
[Oyama Yasunaga] Kichiku Kazoku