水平 線
DLsite 15,994 (16 works) ・ FANZA 1,456,724 (17 works) ・ R-index 1.51
INDUCTED 21 October 2026 · CERTIFICATE No. 0724
Suihei Sen (水平 線) is the name under which the artist of the same name distributes their own work; the print doujinshi have been issued under the circle name Umi no Sachi (うみのさち), and the National Diet Library holds Onekatsu no Susume (2018) as an Umi no Sachi publication. FANZA releases began in 2017 with Amatoro Oppai, and the starting point was onee-shota — stories pairing an older woman with a boy — in books such as Pai Shota Milk. As the titles themselves suggest, much of the catalog belongs to the big-breasts genre. The artist also works in commercial magazines, and since 2023 has continued Saseo no Seo-kun, first published commercially, as a doujin series that includes a school-trip arc. Boku no Otonari-san wa Echichi na Kanrinin-san (JK) desu. (2024) and Osananajimi to Echichi na Ecchi. found an especially wide readership on FANZA. DLsite releases began in 2025, bringing the back catalog over at once together with the collection Suiheisen Dōjinshi Matome.
Active 2017–2026, 10 years ── averaging 1.7 works per year
DLsite 15,994 ・ FANZA 1,456,724 ── combined R-index 1.51. FANZA is its main ground
Still releasing new work in 2026 ── an active hall circle
Fellow Hall of Fame circles that began activity in 2017 ── KAMINENDO.CORP, かみしき, みくろぺえじ, 三毛猫飯店, のらくらり。, ぷぅのぷぅぷぅぷぅ
Selected Works
TOP 3 BY SALES
All Works
2017─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).