Saijo Akane, a drummer who was ousted from her previous band just before her debut, is unexpectedly chosen by Fujitani Naoki, a reclusive and brilliant musician, to join his new band, TENBLANK. Together with band members Takaoka Sho and Sakamoto Kazushi, the band gains fame through Fujitani's distinctive compositions and their electrifying performances. As TENBLANK rises to stardom, they face numerous challenges, and Akane's journey from obscurity to stardom unfolds as Fujitani's secrets emerge. Will the band withstand the storm, and where will Akane's heart lead her? (Source: Netflix) ~~ Adapted from the novel "Glass Heart" (グラスハート) by Wakagi Mio (若木未生).