This is the first in a two-part best album release celebrating 12012's ten year anniversary. It contains remastered versions of representative songs from each of the band's releases during their indie period (when signed with UNDER CODE PRODUCTION). The included DVD features all of the band's indie PVs.

Although all of the featured songs were produced by 12012 during their days at UNDER CODE PRODUCTION, the label had closed by the time of this release. Accordingly, the album was instead published/marketed by Free-Will (who had a close relationship with UCP and seemingly inherited 12012's back catalogue).

Funnily, the release date (2013-12-11) is only one day short of “12012 day” (12-12) which the band celebrates each year, and would seem more appropriate for a best album.