Miu Takigawa observes the world from behind the safety of her bangs, satisfied with quietly slipping through life unnoticed. Reserved and timid, Miu finds it difficult to converse with or even smile at customers during her part-time job, yet she works tirelessly to support her mother and her precious younger sister, Haru. A shock arrives when a letter from the entertainment company GIP announces that she has been selected as a candidate for their new project. Miu decides to accept the invitation and heads to the meeting spot, where an eccentric group of other candidates gradually arrives, all summoned by their own letters. Shortly thereafter, the girls are escorted by a manager to a luxurious secret facility, where they are told they must follow the mysterious directions of "The Wall," whose orders are absolute. On December 24, 2016, idols unlike any other will be born; on that day, the group 22/7 will debut, regardless of whether Miu and the other members are ready to take the stage.