Artist.

Japanese name: こうや (Kouya)
The other names: "Umimura" or "k"
Site & circle name: Ninjinkirai!? (Circle partner: Enu_(Ninjinkirai))

See also

• Pixiv account: http://www.pixiv.net/member.php?id=92049
• Pixiv novels: http://www.pixiv.net/novel/member.php?id=92049
• Tinami account: http://www.tinami.com/creator/profile/8687
• DeviantArt account: http://umimuma.deviantart.com/
• Vector Inc. online software library account: http://www.vector.co.jp/vpack/browse/person/an019225.html
• Twitter account: http://twitter.com/K_Ninjinkirai

• Ninjinkirai!?'s websites (shared with Enu_(Ninjinkirai)):
• Blog: http://ninjinkirai.blog.eonet.jp/
• Entries written by Kouya: http://ninjinkirai.blog.eonet.jp/default/cat7004863/
• Home page (some part of the website is currently unavailable): http://www.eonet.ne.jp/~ninjinkirai/index.html
• Information page: http://www.eonet.ne.jp/~ninjinkirai/info.html
• Old home page (dead): http://homepage1.nifty.com/Ninjinkirai/