-Ains-' first omnibus, featuring all of the MadWink bands. Each participant contributed 2 new songs (or new versions of an existing song), and then the special label session, Ankoku Sekai WA Yami (暗黒世界ハ闇) performed the last track.

暗黒世界ハ闇 was written by Youka from DIAURA. Additionally, this album was distributed by Universal Music. Since this album was only distributed by a major label, it seems like this album was a trial run for -Ains- working with bigger labels.