Carrying his Gibson guitar close, Mafuyu Satou emerges from his dim apartment to begin another day of high school. Resting on the steps of the gymnasium for a quick nod, Satou is confronted by classmate Ritsuka Uenoyama for neglecting his guitar’s upkeep. Seeing Uenoyama’s expertise in the instrument, Satou implores him to fix it and teach him how to play. After some hesitation, Uenoyama agrees and invites him to join his group, which includes bassist Haruki Nakayama and drummer Akihiko Kaji.
Satou’s vocals are mesmerizing, leading Uenoyama to vow to make him the lead singer. Despite initial reluctance, Satou accepts the offer after an intense meeting with an old friend. With the encouragement of his new comrades, Satou must not only learn guitar but also comprehend the enigmatic events surrounding his guitar.
