Sayo Hikawa is a fictional character from the multimedia franchise BanG Dream! She is the lead guitarist of the band Roselia, known for her exceptional musical talent and disciplined nature. Sayo struggles with feelings of inadequacy and constantly strives for perfection, often clashing with her younger twin sister, Hina, due to their contrasting personalities. Her serious demeanor and dedication to her craft make her a pivotal member of Roselia, contributing to the band's success and dynamic sound. Sayo's journey involves overcoming personal challenges and forming strong bonds with her bandmates.