Oshi To Deaitakunai Joshidaisei

the story follows mai, a college student, who joins a light music club because of her crush, the bass player and distributor single mambo. however, she meets mitsui, her classmate, who is also a fan! 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…?