Saw this video on Youtube, is there a Japanese Branch to Libera? or this is just an elaborate cover/performance? thanks! https://www.youtube.com/watch?v=OTqrv4ntJyA&ab_channel=%E5%B8%B8%E6%BB%91%E5%B8%82%E9%9D%92%E6%B5%B7%E5%B8%82%E6%B0%91%E3%82%BB%E3%83%B3%E3%82%BF%E3%83%BC%28%E9%9D%92%E6%B5%B7...