In the midst of rising popularity, the singer "mirai" announces a hiatus. High school student Tsumugi realizes that the true identity of her favorite artist is her arrogant and selfish classmate Miki. Despite this, Tsumugi, wishing for her to continue her activities, volunteers to become her manager. With zero music knowledge and only the passion of a fan, this gloomy and somewhat unreliable manager teams up with the capricious singer to aim for the stage once more! A music youth manga brought to you by the selfish diva and the introverted manager, Volume 1!