松山せいじ
DLsite 130,819 (64 works) ・ FANZA 915,969 (73 works) ・ R-index 1.81
CERTIFICATE No. 0292
Seiji Matsuyama (松山せいじ) is a manga artist born in Fukuoka prefecture in 1975, who debuted in 1994 in Tokuma Shoten's Gekkan Manga Boys and is known for Eiken, serialized in Weekly Shonen Champion. He conducts his doujin activity under the same name as his commercial work, styling himself an "oppai manga artist" and continuing to draw women of ample figure. In download sales he released 71 works between 2016 and 2026, recording a cumulative 130,000 downloads. His upper ranks are filled with plots of older women receiving younger partners, such as Kinjo no ○gakusei no Otoko no Ko ga Watashi no Mune o Chirachira Mite Kuru node... Sex o Shite Ageta Hanashi. (2016) and 50-sai Bakunyū Hitozuma: Kōnenki de Heikei Shite Ninshin Shinaku Natta node... Nakadashi SEX Shihōdai. (2020).
Active 2016–2026, 11 years ── averaging 6.6 works per year
DLsite 130,819 ・ FANZA 915,969 ── combined R-index 1.81. FANZA is its main ground
Still releasing new work in 2026 ── an active hall circle
Fellow Hall of Fame circles that began activity in 2016 ── Ziggurat, 矢印キー, きょくちょ局, 綾枷家の猫, 暗中模索, しまじや
Selected Works
TOP 3 BY SALES
All Works
2016─2026Sales and ratings are automatically tallied from the public data of DLsite Doujin and FANZA Doujin (translated editions excluded). Only manga is counted; CG collections are not (they appear in the list of all works below, but carry no weight in the Dendo Score).