Ryouma Sakamoto wants everyone to know about his passion for rock 'n' roll, so he wanders around town with his electric guitar, ready to show anyone he meets that he is just as skilled as the famous Shinsengumi stars they admire. Unfortunately, Japan permits nothing other than that group's Heaven's Songs, as writing or performing different types of music is forbidden and can lead to harsh consequences. Agitated by these strict rules and brainwashing, Ryouma does everything he can to show people that the music he loves will bring them the freedom they deserve. Along with his bandmates Shinsaku Takasugi and Kogoro Katsura, Ryouma works hard to find places for his rock 'n' roll group to perform. Refusing to back down until their music is accepted in Japan, the trio begin to realize that there's more to their passion than they had thought.