Artist.
Japanese name: のんたん (Nontan)
The other names: のんたん♪ or ノン炭酸
Site name: 前髪の捕食者
https://www.pixiv.net/users/2517116
https://www.pixiv.net/stacc/italy-0317
https://twitter.com/kuroferi
https://twitter.com/kuroferi_2
https://twitter.com/intent/user?user_id=231054346
https://twitter.com/intent/user?user_id=1351073143
https://pawoo.net/@italy_0317
https://pawoo.net/web/accounts/388370
https://sketch.pixiv.net/@italy-0317
http://privatter.net/u/kuroferi
https://ameblo.jp/hetalia13
https://odaibako.net/u/kuroferi
http://twpf.jp/kuroferi
http://twpf.jp/kuroferi_2
http://p.twipple.jp/user/kuroferi
http://twitpic.com/photos/kuroferi