Original : なとり https://www.youtube.com/watch?v=H08YWE4CIFQVocal : K1ri https://twitter.com/K1riy4hayasaka?s=20&t=DohuYf_HxG4WLBQVyYdXlwMix : べんじー https://twitter.com/benz_inkya?s=20&t=GbEwhgzx2ArDCVG6NfF0Ig
http://www.nicovideo.jp/watch/sm41237733
