Miu Takigawa one day receives a letter about something called the GI Project. Brought to the zoo, where she meets seven other girls who had received the same letter, Aoi Goda, a representative of GI Productions, informs them all that they are now all members of an idol group who must take follow orders printed out by a mysterious Wall. Miu initially declines to take part, but after losing her part-time job, she decides to return for the sake of earning money for her family. It is then that the Wall gives the group its name; 22/7.