vocaloid : gumibandcamp : https://adymusic.bandcamp.com/track/i-know-but-i-cant Listen on spotify/apple music/itunes : https://distrokid.com/hyperfollow/adyxsha/i-know-but-i-cant twitter : https://twitter.com/theindisputed21
http://www.nicovideo.jp/watch/sm39114604