kaiteki_(gk428425)
Artist.
Japanese name: カイテキ (Kaiteki)
See also
* Niconico account: http://www.nicovideo.jp/user/40804965
* Niconico Seiga: http://seiga.nicovideo.jp/user/illust/40804965?target=illust_all
* Twitter account: http://twitter.com/gk428425