At Kazamitou Gakuen, students are free to do as they choose and the light music club which Akira is part of is actually the most ‘free’ rock band! Following the motto of enjoying everything in the world, he partook in the club activities as a bass player with guitarist Ryou and vocalist Natsu. That was until the club was disbanded after setting the auditorium on fire with a flame-throwing guitar.
Akira was put into the science club and remained melancholic even while being comforted by his classmate Amane. However, when he returned home, he was greeted with the sight of a beautiful and naked silver-haired girl. Sasha is a Russian girl who will be staying at his place due to his parents’ arrangements. Together with the former light music club members, Sasha and Amane, he works towards the upcoming Amanatsu Music Fest and the Russian rock festival Вторжение.