Manga artist.
He is one of the authors of Kurogane no Linebarrel and is responsible for the plot and mechanical design. (The other author is Shimoguchi Tomohiro.)
Japanese name: 清水 栄一 (Shimizu Eiichi)
Site name: ナデガタサーカス
https://twitter.com/nadegata_circus
https://twitter.com/intent/user?user_id=3196096854
https://www.mangaupdates.com/author/muf3uew
https://www.mangaupdates.com/authors.html?id=49728570296
https://ja.wikipedia.org/wiki/清水栄一
https://www.animenewsnetwork.com/encyclopedia/people.php?id=68862
https://booklive.jp/focus/author/a_id/12019
https://www.mobygames.com/person/887410
https://myanimelist.net/people/6632