THE IDOLM@STER SideM WORLD TRE@SURE --a new CD series linked to the idol raising live game "IDOLM SideM LIVE ON ST@GE!". The theme for Vol. 13 is Japan. Includes one new location-themed track and one common track throughout the "WORLD TRE@SURE" series. Includes two tracks and one instrumental track. Newly illustrated cover artwork.