Young Champion Retsu Vol.10 (2008-01-25 Zoukangou)
MIZUGI CRISIS
[Matsuyama Seiji] Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~ | Eiken Adult Kirika ~With Love From the Milk Bags~ (Eiken) [English] [Digital]
(COMITIA120) [ANCHOR (Mutou Mato)] Hanjuku Fuufu no Toaru Kyuujitsu [Chinese] [萝莉援助汉化组]
Young Comic 2009-07
(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER) [English] [Tigoris Translates]
[anthology] Breath Special Tokushuu Loli-Shota
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 5 [Digital]
COMING EVENT 4
[Matsuyama Seiji] Misoji Idol Takahashi Reiko-san no Yawarakai Oppai de Kyousha (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
Yarashite Kureru Yankee no Mama
(C85) [Matsuyama Seiji (Matsuyama Seiji)] Eiken Makaizou (Eiken) [Incomplete]
Young Champion Retsu Vol.09
ゆかマキふたなり本
(Reitaisai 5) [Sonna hi no koto. (Various)] Uppun Harasu Hon. (Touhou Project)
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 3
Young Comic 2008-09
Otona no Eiken 〜 Shinonome Chiharu 26-sai 〜
Young Champion Retsu Vol.02
50歳パートの普通のおばちゃん……だがそれがいい
Young Champion Retsu Vol.17
Otona no Zokusei Late2015
[MANA-KO] Cinderella Scandal
Young Comic 2009-01
Young Champion Retsu Vol.03
Young Champion Retsu Vol.08 (2007-09-30 Zoukangou)
[Matsuyama Seiji] Otona no Zokusei Late2015 [Digital]
Zenra Eiken
[Enemakura] "Nukinuki no Mi" no Nouryokusha 5 - Shinshou Seishounen Juujigun (One Piece)
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 3 [Digital]
Tanomu to Sex Shite Kureru Yankee Onee-chan.
Manga Bon 2012-09
(Reitaisai 10) [True RIDE (Shinjitsu)] Tenshi-chan ni Oshioki! 2 (Touhou Project)
(C92) [IRODORI (SOYOSOYO)] Sokosoko Isogashii Sentaichou no Tokubetsuna Ichinichi (Full Metal Panic!) [Chinese] [脸肿汉化组]
Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~
[Takatsu] Hitozuma A-san to Musuko no Yuujin N-kun - Married wife A and son's friend N-kun [Chinese] [罗洁爱儿个人汉化]
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 1 [Digital]
Young Comic 2008-12
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
(C67) [Chuuka Mantou (Yagami Dai)] Mantou .25 (Neon Genesis Evangelion)
Giten Ikenie Fujin ~Hikou Kaika ~
Yarashite Kureru Gal Onee-chan.
[Matsuyama Seiji] Eiken Makaizou (Eiken) [English] [Mongolfier] [Digital] [Incomplete]
[杯面] 堕.续 [中國語]
(C80) [BooBooKid (PIP)] Aki to Mikage ni Iroiro Shitemita. (Yu-Gi-Oh! 5D's) [Chinese] [正人君子路过汉化]
Osu! 08 Drag Driver
Musuko wa Ore de Yokujou Suru
Young Comic 2008-10
[Seiji Matsuyama] Ura Eiken ZERO (Eiken)
Lovers
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 1
[Matsuyama Seiji] Kinjo no Chuugakusei no Otokonoko ga Watashi no Mune o Chirachira Mite kuru node... Sex o Shite ageta Hanashi. [Digital]
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
The Pollinic Girls Attack Vol2 - Ch8
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
Young Champion Retsu Vol.13
[zen9] Yacchae! Megumi-san | Do it! Megumi-san Ch 1-6
Otona no Eiken ~Shinonome Chiharu 26-sai~
Young Champion Retsu Vol.05
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
(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER)
[Matsuyama Seiji] Onegai Makoto Sensei (Space Battleship Yamato 2199) [Digital]
Eiken Rare Illust-shuu
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 2 [Digital]
(C91) [Matsuyama Seiji] Ura Eiken ZERO Remake (Eiken)
[Matsuyama Seiji] Eiken Makaizou (Eiken) [Digital]
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 5
[LOVE (Kawai Hideki)] Disappear (Death Note)
[Ryoh-zoh] Rarefure Ch. 1-6 [Chinese] [粵語]
Otoko no Risou wa Sex Dekiru Okaa-san
[Matsuyama Seiji] Eiken Rare Illust-shuu (Eiken) [Digital]
誘う肉穴
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination Part 2
Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai
Gobunnoichi
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 2
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 4
50-sai Bakunyuu Hitozuma Kounenki de Heikei shite Ninshin shinaku natta node... Nakadashi SEX Shihoudai.
56-sai Bust 256cm Danchizuma Ookiku Tareta Jukujo no Chibusa... Boku wa Kono Hito de Doutei o Sotsugyou Shita.
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
Himitsu no Koibito
[Matsuyama Seiji] Eiken Makaizou 3 (Eiken) [Digital]
Kurai Ie
50-sai no Haha ga Erosugite Nakadashi Sex o Shite moratta Doutei no Boku
[Matsuyama Seiji] Eiken Makaizou 4 (Eiken) [Digital]
Little My Maid-first half-
Young Champion Retsu Vol.07 (2007-07-25 Zoukangou)
[Hakase] 2022 nenban tadashii (da) ki kata (Dragon Ball Z)
Eiken Makaizou 2
Manga Bon 2012-06
Oppai de... Icchau no?
[Matsuyama Seiji] 50-sai no Haha ga Erosugite Nakadashi Sex o Shite moratta Doutei no Boku [Digital]
[Seiji Matsuyama] Bukkake Vol. 01
[e] G3 Hizou File 01
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 6 [Digital]
Young Champion Retsu Vol.12 (2008-05-25 Zoukangou)
[Ribons Nights (Kyouno Aki)] Koisuru Matsuyama-san [Digital]
Eiken Makaizou 2
[Matsuyama Seiji] Onegai ♥ Anna-Sensei
Seiji_Matsuyama-Onegai_Anna_Sensei (5-8) small ver.
[Matsuyama Seiji (Matsuyama Seiji)] Oppai Momu? [Digital]
Kuesutobodo, lewd demons and pleasure spells
[Matsuyama Seiji] Azusa-san ga Ore no Yome de Eiken Mitai na Chou Bakunyuu dattara (THE iDOLM@STER) [Digital]
(SC53) [Pallet Box (Haga Yuu)] Astarotte wa Omocha (Lotte no Omocha!)
Young Champion Retsu Vol.04
(C59) [BLACK DOG (Kuroinu Juu)] GREEN DAY (Bishoujo Senshi Sailor Moon) [English]
Mewotojitedaite
30-Sai Imouto
(C80) [Shoujo Kishidan (Oyari Ashito)] LURICOMPLEX +Paper (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)
[Matsuyama Seiji] Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai (Eiken) [Digital]
Young Comic 2008-07
[Bousou!! Fuhatsu-dan (Takai Biki)] TEHON (Hand Maid May)
[Matsuyama Seiji] Otona no Eiken ~Shinonome Chiharu 26-sai~ (Eiken) [Digital]
[Heppoko Youchien] nemurenu yoru ni suna otoko (Ashita no Nadja)
Kari Gokko
[Matsuyama Seiji (Matsuyama Seiji)] Part no Misako-san Mune o Chirami Shite Kuru Shinjin-kun ni Fudeoroshi Shite Ageru no Ga o Suki
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
(CR26) [Paradise City (various)] Tabeta Kigasuru 45 (Angelic Layer, Card Captor Sakura)