存在の証明。■Music&Lyrics:志田雛希( https://twitter.com/shida_hinaki )( mylist/66722225 )■illustration:夜長阿礼( https://twitter.com/Yonaga_Are )■movie:872 ( https://twitter.com/8782872ya )off vocal: https://piapro.jp/t/Hasmyoutube : https://www.youtube.com/watch?v=2h_Q_u2R9Hw&feature=youtu.be