URLs

• https://www.pixiv.net/users/657991
• https://www.pixiv.net/stacc/summer_71611_blue
• https://sketch.pixiv.net/@summer_71611_blue
• https://twitter.com/darkforest_vrdr
• https://twitter.com/viridian_ryusei
• http://twitpic.com/photos/viridian_ryusei
• http://yfrog.com/user/viridian_ryusei/photos