Secret Answer/Seven‘s Proud (cover)
公式Twitter : https://twitter.com/Sevens_infoOriginal：XYZ様 https://youtu.be/pwLP3GDIhAk Mix：ソノイ様 https://twitter.com/_SonoiIllust：NAT様 https://twitter.com/...
https://www.youtube.com/watch?feature=youtu.be&v=wh3iNRnG4JM
