Artist.
Japanese name: 零一, ぜろいち or ゼロイチ (Zeroichi)
Site name: 零式スプリング (Zeroshiki Spring)
https://www.pixiv.net/users/1401129
https://www.pixiv.net/stacc/chidorinagashi
https://twitter.com/zeroichi0723
https://twitter.com/intent/user?user_id=97479305
https://pawoo.net/@chidorinagashi
https://pawoo.net/web/accounts/497211
https://sketch.pixiv.net/@chidorinagashi
http://yudantaiteki004.blog.fc2.com