YouTube Upload: http://www.youtube.com/watch?v=zrjuj12r_gIOriginal: sm6909505 Illustration by: 鼻血 http://www.pixiv.com/works/17225962UST by: HaruVampire http://youtu.be/QIP7GqGbhks
http://www.nicovideo.jp/watch/sm19577622