When she was little, Kasumi always searched for something that sparkled and made her heart race— just like the "heartbeat of the stars" she heard when gazing up at the night sky. One day, shortly after entering high school, she stumbles upon a star-shaped guitar in an old pawnshop’s storehouse. The moment she lays eyes on it, a thrill unlike anything she's ever felt before rushes through her, awakening emotions she had long kept locked away. Together with four other girls who were also searching for a place to shine, she sets out on a new journey. Even sounds she could never create alone— surely, with the five of them, they can make music together. "We’re definitely going to have a live show here!"