[Machine Translation] This is the best album of the major label "Wirimitsu Shiyagare", which will celebrate its 15th anniversary in July 2012! The album contains many gems of music by guest artists such as Odagiri Joe and Mika Nakashima, as well as previously unreleased material, and also includes a complete set of songs that were sold only at live concerts. Includes 12 fold-out posters.