https://www.youtube.com/watch?v=QbJhBn_cQGI&t=6870shttps://www.nicovideo.jp/watch/sm41842532https://news.yahoo.co.jp/articles/592d57b70136a453a5ccb97495911cad7d49ad3b
http://www.nicovideo.jp/watch/sm41846050
