Artist. Likes military uniforms.
Japanese name: 唐墨 (カラスミ, Karasumi)
https://www.pixiv.net/users/287610
https://www.pixiv.net/stacc/sumizono
https://twitter.com/karasumi742_g
https://twitter.com/intent/user?user_id=1635133056
https://pawoo.net/@sumizono
https://pawoo.net/web/accounts/518813
https://sketch.pixiv.net/@sumizono
https://privatter.net/u/karasumi742_g
http://peing.net/karasumi742_g
https://twitter.com/karasumi742
http://sumizono.hp.infoseek.co.jp