紫咲シオン© 2019 cover corp. https://www.youtube.com/watch?v=xg4HOlIhrV0&ab_channel=ShionCh.%E7%B4%AB%E5%92%B2%E3%82%B7%E3%82%AA%E3%83%B3
http://www.nicovideo.jp/watch/sm38095191
