Kasumi Toyama is a fictional character from the multimedia project BanG Dream!, which includes video games, anime, and music. She is the main protagonist of the series and is known for her cheerful personality and passion for music. Kasumi is a high school student who dreams of forming a band and sharing her love for music with others. In the story, Kasumi is the leader of the band Poppin'Party, which is known for its upbeat and energetic songs. She plays the guitar and is characterized by her determination and optimism. Her journey involves overcoming challenges and inspiring her friends to pursue their musical dreams.