This is the story of the Kitauji Music club and its members. With the introduction of a new club adviser, the story depicts the students' daily lives as they face challenges and obstacles.
The story centers around Himeji Wakaba, a fifth-grade girl who can see things others cannot. As a result, she is scared by her surroundings, keeps her distance from others, and lives a lonely life. One day, she meet a mysterious soft, pink creature that cries Pupipoo! - and her life is changed from that day forward.