30-pun de Wakaru! Kore made no Love Live!

Honoka Kosaka refuses to accept that Otonokizaka High School will close for lack of applicants. Inspired by the growing popularity of school idols, she joins Umi Sonoda and Kotori Minami to form μ's, hoping their performances can bring attention and new students to the school they love.

What begins with three inexperienced girls gradually grows into a nine-member group united by friendship and a shared stage. Their path leads through setbacks, rival school idols, the Love Live competition, and the difficult question of what μ's should become as graduation approaches.