Artist.
Japanese name: ほしかわ (Hoshikawa)
Other names: 星川 城 (ほしかわぐすく, Hoshikawa Gusuku), hoshikawa
https://www.pixiv.net/users/1840678
https://www.pixiv.net/stacc/flcl_crazy_sunshine
https://twitter.com/kiryu_go
https://twitter.com/intent/user?user_id=2427090703
https://seiga.nicovideo.jp/user/illust/23503831
http://com.nicovideo.jp/community/co3440153
https://www.nicovideo.jp/user/23503831
http://1806van03rei009ki.blog.fc2.com
https://odaibako.net/u/kiryu_go
https://twitter.com/hoshikawa_gsk
http://twitpic.com/photos/hoshikawa_gsk