A schoolgirl named Shizuku, who longs to discover her true talents, meets the mysterious Seiji, a boy who is determined to follow his dreams, and The Baron, a magical cat who helps her listen to the whispers in her heart.

Suzu is a shy high school student living in a rural village. For years, she has only been a shadow of herself. But when she enters "U," a massive virtual world, she escapes into her online persona as Belle, a globally-beloved singer.