Korean artist.
Hangul name: 갸흥 (ぎゃふん, Gyaheung or Gyafun)
The other name: 갸아흐응 (Gyaaheueung)
https://www.pixiv.net/users/6293659
https://www.pixiv.net/stacc/gyah
https://twitter.com/gyaheung
https://twitter.com/intent/user?user_id=1019570352052060160
https://sketch.pixiv.net/@gyah
https://ask.fm/gyaheung
https://privatter.net/u/gyaheung
https://blog.naver.com/gyaheung
https://www.pixiv.net/stacc/yadac725
https://twitter.com/9yah_
https://twitter.com/intent/user?user_id=1131020596689625088
http://p.twipple.jp/user/gyaheung
http://twitpic.com/photos/gyaheung