The story takes place in a private girls' school called Uranohoshi, where a group of lovely girls full of positive energy study and live. Among them, there are nine girls with dazzling halos, who work hard to become campus idols. On this road full of setbacks and thorns, how far can they go with their courage and strength? The lively and cheerful Chika Takami (voiced by Iwa Anju), the mature and calm Sakurauchi Riko (voiced by Aida Rikako), the carefree Kanan Matsuura (voiced by Suwa Nanaka), the arrogant and indifferent Kurosawa Dia (voiced by Komiya Arisa), the all-athletic Watanabe Yo (voiced by Saito Akegata), the two-dimensional girl Tsushima Yoshiko (voiced by Kobayashi Aika), the gentle and introverted Kunikida Hanamaru (voiced by Takatsuki Kanako), the mixed-race girl Ohara Mari (voiced by Suzuki Aina) and the timid and ignorant Kurosawa Ruby (voiced by Furuhata Ai), these nine girls with different personalities, carry on their small shoulders the shining ideals.