URLs

• https://www.pixiv.net/users/27556
• https://www.pixiv.net/stacc/nrtk
• https://twitter.com/nrtk
• https://twitter.com/intent/user?user_id=18303677
• http://kurokabe.blog.fc2.com
• http://p.twipple.jp/user/nrtk
• http://twitpic.com/photos/nrtk