Ryoma Sakamoto is the protagonist of the anime series 'Bakumatsu Rock.' Set during the Bakumatsu period in Japan, Ryoma is a fiercely passionate and rebellious rock musician who dreams of igniting a revolution through his music. In a society where oppressive government laws dictate people's lives, Ryoma stands against the Shogunate's control, using his guitar and voice as weapons of change. With his charismatic and energetic personality, he inspires others to join his cause, challenging the status quo and striving for freedom and individuality. His role is pivotal in leading the band and influencing the cultural shift towards a new era.