URLs

• https://www.pixiv.net/users/54035
• https://www.pixiv.net/stacc/nai-tech
• https://twitter.com/RYUKNIGHT
• https://twitter.com/intent/user?user_id=69606376
• https://pawoo.net/@nai_tech
• https://pawoo.net/web/accounts/382735
• https://sketch.pixiv.net/@nai-tech
• http://naitech.blog.fc2.com
• http://naitech.web.fc2.com
• http://www.amazon.co.jp/内藤-隆/e/B005AJZG5K/
• http://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/creater.php?creater=3448
• http://d.hatena.ne.jp/nai-tech/
• http://f.hatena.ne.jp/nai-tech/
• http://profile.hatena.ne.jp/nai-tech/
• http://ryunaitou.jp
• http://f.st-hatena.com/images/fotolife/n/nai-tech/
• http://www.02.246.ne.jp/~nai-tech/
• http://twitpic.com/photos/RYUKNIGHT