取り急ぎ元動画 https://www.youtube.com/watch?v=z8XLBH5alpI&t=1019s 八重沢なとりYoutube: https://www.youtube.com/channel/UC1519-d1jzGiL1MPTxEdtSA Twitter: https://twitter.com/YaezawaNatori
http://www.nicovideo.jp/watch/sm35665600
