あかりは歌姫

https://img.cdn.nimg.jp/s/nicovideo/thumbnails/37198401/37198401.88798678.original/r1280x720l?key=b00152b58e3b24b14feb1326f2bb302f63ca551c8c0ff7b01be31fd9a9342f43#.png https://www.nicovideo.jp/watch/sm37198401