Yarashite Kureru Gal Onee-chan.
[Matsuyama Seiji] Azusa-san ga Ore no Yome de Eiken Mitai na Chou Bakunyuu dattara (THE iDOLM@STER) [Digital]
Young Champion Retsu Vol.04
Hajimete no Furin Onsen
Isourou no Kyuuketsuki to xxx
(C60) [Binbou Noujou (Mitsuyama Hajime)] Special Suisei Kick (Cosmic Baton Girl Comet-san)
(C91) [Matsuyama Seiji] Ura Eiken ZERO Remake (Eiken)
Young Comic 2008-08
Manga Bon 2012-12
Otona no Eiken
[Matsuyama Seiji] Otona no Zokusei Late2015 [Digital]
Nandemo Yasashiku Ukeirete Kureru Imouto
Young Champion Retsu Vol.17
(C92) [Tekkamaki (Tetsuyama Kaya)] Tsumetai Binetsu -Kyoudai Hen- [Chinese]
[Matsuyama Hayate, Hitotsuki Katagiri] Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 2 [Digital]
[Matsuyama Seiji (Matsuyama Seiji)] Oppai Momu? [Digital]
COMIC Europa Vol. 17
[anthology] Breath Special Tokushuu Loli-Shota
[Matsuyama Seiji] Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai (Eiken) [Digital]
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 5 [Digital]
Young Comic 2008-12
Young Champion Retsu Vol.10 (2008-01-25 Zoukangou)
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 6 [Digital]
[Matsuyama Seiji] Eiken Makaizou (Eiken) [English] [Mongolfier] [Digital] [Incomplete]
[Tekkamaki (Tetsuyama Kaya)] Nandemo Yasashiku Ukeirete Kureru Imouto [English] [frogstat] [Digital]
Eiken Makaizou 3
[Matsuyama Seiji] Tanomu to Sex Shite Kureru Boku no Yankee Onee-chan. [English] [Digital]
(ComiComi2) [Binbou Noujou (Mitsuyama Hajime)] Fukanzennenshou Futoumei Kecchaku (Gunparade March)
COMIC Europa Vol. 13
[Matsuyama Seiji] Kinjo no Chuugakusei no Otokonoko ga Watashi no Mune o Chirachira Mite kuru node... Sex o Shite ageta Hanashi. [Digital]
Eiken Makaizou 2
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
COMIC Europa Vol. 14
[MANA-KO] Cinderella Scandal
Young Comic 2008-07
[Tetsuyama Kaya] Shojo Holic - Virgin-holic [Digital]
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination Part 1
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
[Matsuyama Seiji] Yarashite Kureru Gal Onee-chan. [Digital]
[Matsuyama Seiji] Yarashite Kureru Yankee no Mama [Digital]
COMIC BAVEL 2019-09
[Matsuyama Seiji] Misoji Idol Takahashi Reiko-san no Yawarakai Oppai de Kyousha (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
[Matsuyama Seiji (Matsuyama Seiji)] Part no Misako-san Mune o Chirami Shite Kuru Shinjin-kun ni Fudeoroshi Shite Ageru no Ga o Suki
Mondou Muyou no Oshioki Kyousei Zecchou Vol. 2
[LOVE (Kawai Hideki)] Disappear (Death Note)
Pure Sexy Lesson
50歳パートの普通のおばちゃん……だがそれがいい
Young Comic 2008-10
[ピロシキ帝国(ンモ=エザゴ)] 生徒会長が食っちゃ寝を繰り返したら牛になったって本当ですか!?(白猫プロジェクト)
[Matsuyama Seiji] 50-sai no Haha ga Erosugite Nakadashi Sex o Shite moratta Doutei no Boku [Digital]
Young Comic 2009-07
(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER) [English] [Tigoris Translates]
Kanbotsuyama Biwak