NKDC Vol. 10
Young Champion Retsu Vol.02
Young Champion Retsu Vol.11 (2008-03-30 Zoukangou)
Otona no Eiken 〜 Shinonome Chiharu 26-sai 〜
Eiken Makaizou 2
[Matsuyama Seiji] Otona no Eiken ~Shinonome Chiharu 26-sai~ (Eiken) [Digital]
Niizuma No Shuuchi Play
[Seiji Matsuyama] Ura Eiken ZERO (Eiken)
(C91) [Koharumachi (Sawasaki)] Otona no Katyusha Nikki 2 (Girls und Panzer)
[Matsuyama Hayate] Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 1 [English] [SachiKing] [Digital]
[anthology] Breath Special Tokushuu Loli-Shota
Eiken Rare Illust-shuu
[Matsuyama Seiji (Matsuyama Seiji)] Oppai Momu? [Digital]
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 4
Young Champion Retsu Vol.04
[Matsuyama Seiji] Eiken Rare Illust-shuu (Eiken) [Digital]
[Matsuyama Seiji] Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai (Eiken) [Digital]
[Matsuyama Seiji] Eiken Makaizou (Eiken) [Digital]
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 3
[Harem (Mizuki Honey)] Sex Machine (One Piece)
Eiken Makaizou 3
(C92) [Kuzutetsu (Nasuo)] Furenaba Ochin (Boku no Hero Academia) [English]
[Seiji Matsuyama] Bukkake Vol. 01
Young Comic 2009-01
[Studio Aruta (Kusui Aruta)] Friends ga Iru Fuuzoku ga Arutte Hontou desu ka? Sugoi! Kimi wa Koubi ga Tokui na Friends Nanda ne! Hen (Kemono Friends) [Digital]
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 4 [Digital]
Onegai Anna Sensei by Seiji Matsuyama
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 1 | Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 1
[Matsuyama Hayate, Hitotsuki Katagiri] Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
[Matsuyama Seiji] Misoji Idol Takahashi Reiko-san no Yawarakai Oppai de Kyousha (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
[杯面] 堕.续 [中國語]
[Matsuyama Seiji] Tanomu to Sex Shite Kureru Boku no Yankee Onee-chan. [English] [Digital]
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination Part 2
[Matsuyama Seiji] Onegai ♥ Anna-Sensei
Arvess no Iu Toori
Hajimete no Furin Onsen
Young Champion Retsu Vol.07 (2007-07-25 Zoukangou)
50-sai Bakunyuu Hitozuma Kounenki de Heikei shite Ninshin shinaku natta node... Nakadashi SEX Shihoudai.
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 3 | Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 3
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... | 女體化後色情體檢!?說好只看不動手的呀… Ch.1-6
[MANA-KO] Cinderella Scandal
(C75) [DIGITAL ACCEL WORKS (INAZUMA)] gRand theft samen four~ (Zettai Karen Children)
[LOVE (Kawai Hideki)] Disappear (Death Note)
[Matsuyama Seiji] Eiken Makaizou 3 (Eiken) [Digital]
[Matsuyama Seiji (Matsuyama Seiji)] Part no Misako-san Mune o Chirami Shite Kuru Shinjin-kun ni Fudeoroshi Shite Ageru no Ga o Suki
Manga Bon 2012-06
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 2 [Digital]
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 6 [Digital]
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 2 | Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 2
Tanomu to Sex Shite Kureru Yankee Onee-chan.
(C88) [Nejikiri Sister (Hanemikakko)] Subterranean Sun Birthday (Touhou Project) [English] [A-Trans]
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
50歳パートの普通のおばちゃん……だがそれがいい
Eiken Adult Kirika ~With Love From the Milk Bags~
Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai
Yarashite Kureru Yankee no Mama
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 1
[Matsuyama Seiji] Eiken Makaizou 2 (Eiken) [Digital]
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 1 [Digital]
Comic Rin Vol. 19 [2006-07]
Kinjo no Chuugakusei no Otokonoko ga Watashi no Mune o Chirachira Mite kuru node... Sex o Shite ageta Hanashi.
[Matsuyama Seiji] Azusa-san ga Ore no Yome de Eiken Mitai na Chou Bakunyuu dattara (THE iDOLM@STER) [Digital]
(C80) [Kuroi Kyoudain (NishiEda)] NishiEda Senga Bon 6
[Matsuyama Seiji] Loli-gao de Kyonyuu na Okaa-san ga Boku no Hatsutaiken. [Digital]
Young Champion Retsu Vol.13
Young Champion Retsu Vol.15
(Douyara Deban no Youda! 4) [bb (Ume)] Jaguar Shock (Boku no Hero Academia)
[Teruyo] 私たちの猥らな生活。
[Matsuyama Seiji] Kinjo no Chuugakusei no Otokonoko ga Watashi no Mune o Chirachira Mite kuru node... Sex o Shite ageta Hanashi. [Digital]
Kaede-san to Shota P no Ecchi na Hon
Young Comic 2008-10