[Matsuyama Seiji] Misoji Idol Takahashi Reiko-san no Yawarakai Oppai de Kyousha (THE IDOLM@STER CINDERELLA GIRLS) [Digital]

[Matsuyama Seiji (Matsuyama Seiji)] Oppai Momu? [Digital]

[Matsuyama Seiji (Matsuyama Seiji)] Part no Misako-san Mune o Chirami Shite Kuru Shinjin-kun ni Fudeoroshi Shite Ageru no Ga o Suki

(C85) [Matsuyama Seiji (Matsuyama Seiji)] Eiken Makaizou (Eiken) [Incomplete]

[Matsuyama Seiji] Azusa-san ga Ore no Yome de Eiken Mitai na Chou Bakunyuu dattara (THE iDOLM@STER) [Digital]

(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER) [English] [Tigoris Translates]

(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER)

[Matsuyama Seiji] Loli-gao de Kyonyuu na Okaa-san ga Boku no Hatsutaiken. [Digital]

(C82) [T2 ART WORKS (Tony Taka)] Reiko-san to Mayo-chan no Koto wo Omotte Itara, Muramura Shite Kitanode Ero hon ni Shite Mita yo. | I Can't Help But Want to Draw an Erotic Book About Reiko-san and Maya-chan [English] {doujin-moe.us} [Decensored]

(C98) [Milk Farm Tanaka (Various)] M@STER MILK (THE IDOLM@STER MILLION LIVE!, THE iDOLM@STER CINDERELLA GIRLS, THE iDOLM@STER SHINY COLORS)

[Matsuyama Seiji] 50-sai no Haha ga Erosugite Nakadashi Sex o Shite moratta Doutei no Boku [Digital]

[Matsuyama Seiji] Eiken Makaizou (Eiken) [English] [Mongolfier] [Digital] [Incomplete]

[Matsuyama Seiji] Oba x Boku - 41-sai Komochi no Shufu ga Doutei no Boku ni Tanomikomarete Shikatanaku...? Sex Shita Hanashi [Digital]

[Matsuyama Seiji] Eiken Makaizou 3 (Eiken) [Digital]

[Matsuyama Seiji] Otona no Zokusei Late2015 [Digital]

[Matsuyama Seiji] Kinjo no Chuugakusei no Otokonoko ga Watashi no Mune o Chirachira Mite kuru node... Sex o Shite ageta Hanashi. [Digital]

[Matsuyama Seiji] Eiken Makaizou (Eiken) [Digital]

[Matsuyama Seiji] Onegai Makoto Sensei (Space Battleship Yamato 2199) [Digital]

[Matsuyama Seiji] Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~ (Eiken) [Digital]

[Matsuyama Seiji] Otona no Eiken ~Shinonome Chiharu 26-sai~ (Eiken) [Digital]

[Matsuyama Seiji] Tanomu to Sex Shite Kureru Boku no Yankee Onee-chan. [English] [Digital]