22/7 (Nanabun no Nijyuuni) - S01

Miu Takigawa prefers to stay out of the spotlight, hiding behind her bangs and quietly going about her life. Shy and withdrawn, she even finds it hard to talk to customers at her part-time job, but she pushes through to support her mother and her beloved younger sister, Haru. So when a letter arrives from the entertainment company GIP, announcing she’s been selected for a mysterious new project, it catches her completely off guard. Despite her hesitation, Miu agrees and shows up at the meeting place, where she meets an odd assortment of other girls-each chosen by their own letters. Soon, they’re taken to a lavish, secret facility by a company manager, who informs them they must obey the unyielding commands of "The Wall," a mysterious authority whose word is law. Their deadline is set: on December 24, 2016, the idol group 22/7 will debut, ready or not. Whether Miu and the others can rise to the challenge remains to be seen.