URLs

• https://www.pixiv.net/users/54916
• https://www.pixiv.net/stacc/hirokikusanagi
• https://twitter.com/ku_ryu
• https://twitter.com/intent/user?user_id=17410333
• https://sketch.pixiv.net/@hirokikusanagi
• http://shohomuga.blog.fc2.com
• http://twitpic.com/photos/ku_ryu