https://www.pixiv.net/users/1116416
https://www.pixiv.net/stacc/nagisawayou
https://twitter.com/Nagisawa
https://twitter.com/intent/user?user_id=74326994
http://nagisawayou.blog.fc2.com
http://doujinshi.mugimugi.org/browse/author/982/Nagisawa-Yuu/
http://twitpic.com/photos/Nagisawa
