Artista oyama yasunaga

(C64) [Koutarou with T (Koutarou, Tecchan, Oyama Yasunaga etc] GIRL POWER Vol.14 (Air Master)

[Oyama Yasunaga] Chitsunai Renzoku Chuunyuu

(story) After Lesson

(C63) [Comic Kingdom (Koyama Unkaku, Oyama Yasunaga, Tecchan)] Orange Road Sex (Kimagure Orange Road)

Comic Mate 1999-12

Comic Lemon Club 1997-08

[Oyama Yasunaga] Working Angels

[Oyama Yasunaga] Seiyoku Shori Kyoushitsu

[Oyama Yasunaga] Seifuku Shoujo Jiru

[Oyama Yasunaga] Seifuku Shojo Tengoku

[Oyama Yasunaga] Puff Puff Parfait

[Oyama Yasunaga] Oyaman

[Oyama Yasunaga] Nupu Nupu Nuppun

[Oyama Yasunaga] Moeyo Boinken!

[Oyama Yasunaga] Joshikousei Rinkan

[Oyama Yasunaga] Iyarashii Hanashi

[Oyama Yasunaga] Kichiku Kazoku

[Oyama Yasunaga] Dokkin Clinic

[Oyama Yasunaga] Cosplay Magician

COMIC Himedorobow 2007-10

[Oyama Yasunaga] Shakkin Nikudorei

[Anthology] Ryoujoku Gakkou Vol. 24

[Anthology] Kindan Kanin Vol. 25 Boshi Seikou

[Oyama Yasunaga] Seibo Inran