Otonokizaka High School is located between the neighborhoods of Akihabara, Kanda, and Jimbocho. 9 girls from this school formed a group, centered around the second-year student Honoka Kosaka.This group, called μ's (Muse), has been gaining popularity both inside and outside of the school! Now you have been asked to help this busy young group of school idols with their idol activities!Help them perform successful Live Shows and recruit new members as they gain even more popularity!