(Dramatic Change 4) [Inumatsuya (Shirai Ten)] Teru-san Oishii desu! (THE IDOLM@STER SideM)
(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER) [English] [Tigoris Translates]
Seiji_Matsuyama-Onegai_Anna_Sensei (5-8) small ver.
Young Champion Retsu Vol.15
[Tamatsuyada, Satou Kimiatsu] Energy Kyo-ka!! ~Bakunyuu JK. Gachizeme Hatsujouchuu!~ Chou Pinch! Tonda Ero Bus Dai Shissou! Zenra Jousha de Nukitsu Nukaretsu!? [Digital]
(C85) [Spermation (Tamatsuyada, Satou Kimiatsu)] Energy Kyo-ka!! Soushuuhen 2 Manguri Hen
Young Comic 2008-09
Young Champion Retsu Vol.17
[Matsuyama Seiji] Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai (Eiken) [Digital]
[Matsuyama Seiji] Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~ (Eiken) [Digital]
[Ribons Nights (Kyouno Aki)] Koisuru Matsuyama-san [Digital]
COMIC X-EROS #21
[Spermation (Tamatsuyada, Satou Kimiatsu)] Energy Kyo-ka!! ~Bakunyuu JK. Gachi Zeme Hatsujou Chuu!~ Ch.2-3 [English]
[Matsuyama Seiji] Eiken Makaizou (Eiken) [English] [Mongolfier] [Digital] [Incomplete]
[Matsuyama Seiji] Yarashite Kureru Gal Onee-chan. [Digital]
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 6 | Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 6
[Matsuyama Seiji] Otona no Zokusei Late2015 [Digital]
Iiko Iikoto Kimochi Iikoto | 好孩子舒服的事欲罢不能的事情
[Tamatsuyada, Satou Kimiatsu] Energy Kyo-ka!! ~Bakunyuu JK. Gachizeme Hatsujouchuu!~ Rachel Toujou! Shoukan o Kakete Lotion Mamire no Doutei Tokumori Match!! [Digital]
[Tamatsuyada, Satou Kimiatsu] Energy Kyo-ka!! ~Bakunyuu JK. Gachi Zeme Hatsujou Chuu!~ [English] [Digital]
[Matsuyama Seiji] 50-sai no Haha ga Erosugite Nakadashi Sex o Shite Moratta Doutei no Boku. [English] [Fated Circle] [Digital]
[Matsuyama Hayate] Dokushin Ryou no Hame rare Omocha ~ Osoujichuu ni Guchi ~yogu choshi naide…! [Kanzenban]
(C85) [Spermation (Tamatsuyada, Satou Kimiatsu)] Energy Kyo-ka!! Soushuuhen 1 NukiSuppo Hen ch.1 [English] =Krizalid=
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 6 [Digital]
(C91) [Matsuyama Seiji] Ura Eiken ZERO Remake (Eiken)
Young Champion Retsu Vol.10 (2008-01-25 Zoukangou)
[Tamatsuyada, Satou Kimiatsu] Henshin!? Sukekomas!! Dai 1-wa Inran Shota Zuki Satokura Manami <26-sai> no Baai [Digital]
Otona no Eiken
Oppai de... Icchau no?
Oppai Momu?
[Teru] Chin Nii-chan [Chinese] [黑街汉化组]
Young Champion Retsu Vol.09
[Seiji Matsuyama] Bukkake Vol. 01
[Tamatsuyada, Satou Kimiatsu] Energy Kyo-ka!! ~Bakunyuu JK. Gachi Zeme Hatsujou Chuu!~ Ch. 1 [Chinese] [菓子铺汉化]
Young Comic 2009-01
[LOVE (Kawai Hideki)] Disappear (Death Note)
Energy Kyo-ka!! Soushuuhen 1 NukiSuppo Hen ch.1
[Kuroneko Smith] Oba-san no Karada ga Kimochi Yosugiru kara ~Boku no Oba-san wa Chou Meiki datta~ | 阿姨令人垂涎三尺身體 ~她的小穴是最舒服的~ [Chinese] [TMOS个人汉化]
(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER)
[Teruyo] 私たちの猥らな生活。
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 3 [Digital]
[Tamatsuyada, Satou Kimiatsu] Energy Kyo-ka!! ~Bakunyuu JK. Gachi Zeme Hatsujou Chuu!~ Ch. 2-5 [English] [Digital]
COMIC X-EROS #25
COMIC Shitsurakuten 2017-07
Young Champion Retsu Vol.06
[Matsuyama Seiji] Eiken Makaizou 4 (Eiken) [Digital]
Otona no Eiken ~Shinonome Chiharu 26-sai~
[Matsuyama Hayate, Hitotsuki Katagiri] Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
[Matsuyama Seiji] Loli-gao de Kyonyuu na Okaa-san ga Boku no Hatsutaiken. [Digital]
[Tamatsuyada, Satou Kimiatsu] Henshin!? Sukekomas!! Dai 6 wa Shitteru? Nurutteru. Sutto Suru! Jaguar Balm de Midara Settai! [Digital]
[Matsuyama Seiji] Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~ | Eiken Adult Kirika ~With Love From the Milk Bags~ (Eiken) [English] [Digital]
Yourtoy
[Matsuyama Seiji] Eiken Makaizou 2 (Eiken) [Digital]