[Oyama Yasunaga] Iyarashii Hanashi
[Grace (Yokoyama Naoki)] Yokoyama Naoki ni yoru Yokoyama Nao no Eroi Hon (THE IDOLM@STER) [Digital]
[Grace (Yokoyama Naoki)] Yokoyama Naoki ni yoru Yokoyama Nao no Eroi Hon (THE IDOLM@STER MILLION LIVE!) [English] {doujin-moe.us} [Digital]
[Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku (THE IDOLM@STER MILLION LIVE!) [Digital]
[Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku 2 (THE IDOLM@STER MILLION LIVE!) [Digital]
(C87) [Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku 2 (THE IDOLM@STER MILLION LIVE!)
(C86) [Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku (THE IDOLM@STER MILLION LIVE!)
(C86) [Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku | Million Back Dancers Adult "Entertainment" Camp (THE IDOLM@STER MILLION LIVE!) [English] {doujin-moe.us}
[Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku (THE IDOLM@STER MILLION LIVE!) [Chinese] [脸肿汉化组] [Digital]
(C63) [Comic Kingdom (Koyama Unkaku, Oyama Yasunaga, Tecchan)] Orange Road Sex (Kimagure Orange Road)
[Oyama Yasunaga] Oyaman
[Oyama Yasunaga] Oyama Yasunaga Jisen Kessaku Shuu [Digital]
[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]
[Oyama Yasunaga] Eggu ~Chou Ero Gal Shijou Shugi~ [Digital]
[Oyama Yasunaga] Ingoku Gakuen [Digital]
[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]
[Oyama Yasunaga] Shachiku Joshi Kabushiki Gaisha [Digital]
(C80) [Coffee Curry (Oyama Robi)] Mousou no Omocha (Lotte no Omocha)
[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]
[Oyama Yasunaga] Goukan Eigakan
[Oyama Yasunaga] Nukeru Karada
[Oyama Yasunaga] Slave Rape
[Oyama Yasunaga] Shoujo Hatsutaiken Relay
[Oyama Yasunaga] Shoujo Idol Goukan
[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] Costume Play Magician
[Oyama Yasunaga] Yarippanashi Hyakurenpatsu
[Oyama Yasunaga] Nupu Nupu Nuppun
[Oyama Yasunaga] Seifuku Shojo Tengoku