SIDE：OPUS 羽っ鳥もさく共和国 羽鳥風画 / Arrangement (M-1,2,4,5,7,8,9,10) Guest Artists ziki_7 / Arrangement (M-3) YDK / Arrangement (M-6) SIDE：EDEN 羽っ鳥もさく共和国 羽鳥風画 / Arrangement (M-1,2,3,5,6,7,9,10) Guest Artists fang / Arrangement (M-4) oiko / Arrangement (M-8) Cover Artwork 牛木義隆 （