[Machine Translation] Rejet's first media mix project, 5-Vocal-Band "EROSION", is releasing three new CDs in a row! In addition to two new songs from EROSION, a 60-minute full-length drama revealing the band's past is also included. A mysterious young man appears before them. And the purpose of their father, Carnelian... The answer that you and he will find when he regains all his memories........