Mafuyu Satou emerges from his gloomy apartment carrying his Gibson guitar as he starts another day of high school. He meets fellow student Ritsuka Uenoyama by coincidence as he is taking a nap in a peaceful area on the stairs leading to the gym. Ritsuka chastises him for allowing his guitar's strings to rust and break. Satou begs Uenoyama to fix the instrument and show him how to play after observing Uenoyama's proficiency with it. Eventually, Uenoyama accepts and asks him to join him and his fellow musicians, drummer Akihiko Kaji and bassist Haruki Nakayama, for a jam session. Due to Satou's voice's stunning beauty, Uenoyama became determined to make Satou the band's lead singer. Despite being wary at first, Satou takes