Oshi to Deaitakunai Joshidaisei

The story follows Mai, a college student, who joins a light music circle because of her idol, the bass player and content creator, Single Manbou. However, she meets Mitsui, her classmate, who happens to be Single Manbou! She doesn't want to get close to him and doesn't want to be revealed as a fan, but for some reason, Mitsui is getting closer and closer to her…?