URLs

• https://www.pixiv.net/users/1504550
• https://www.pixiv.net/stacc/riku-windmill
• https://twitter.com/7kr9
• https://twitter.com/7kr9B
• https://twitter.com/7kr9_
• https://twitter.com/intent/user?user_id=560213059
• https://twitter.com/intent/user?user_id=1897335270
• https://twitter.com/intent/user?user_id=3000367268
• https://sketch.pixiv.net/@riku-windmill
• http://twpf.jp/7kr9
• http://twpf.jp/7kr9B
• http://twitpic.com/photos/7kr9_
• http://yfrog.com/user/7kr9_/photos