IDOLiSH7's popularity has soared to new heights following their astounding performance at Black or White. Daily offers for concerts and work flood in, bringing joy to the group of seven boys and their manager. However, the stress of fame begins to take a toll on Riku Nanase's health, as he struggles to cope with the mounting workload. With Zero Arena's reopening event looming, the group is approached by Re:vale, a renowned duo. In IDOLiSH7: Second Beat, viewers witness the group's journey as they battle the obstacles of being idols while dealing with their personal struggles. Despite the challenges, they remain steadfast in their dedication to meeting the expectations of their beloved fans.