URLs

• https://www.pixiv.net/users/177554
• https://www.pixiv.net/stacc/yu_ki
• https://twitter.com/senno_yk
• https://twitter.com/intent/user?user_id=114956825
• https://sketch.pixiv.net/@yu_ki
• http://p.twipple.jp/user/senno_yk
• http://twitpic.com/photos/senno_yk
• http://yfrog.com/user/senno_yk/photos