The long-awaited new unit CD series of "THE iDOLM@STER SideM" has begun! In this unit CD, you can catch a glimpse of how the idols of 315 Production head to the next stage, where each unit is given a new job by the president. Volume 08 is High x Joker including a drama part, a new unit song and a common song for the CD series. The unit to released a single simultaneously will make a guest appearance in the drama part. Newly illustrated cover artwork.