Trapezium

Fueled by her dream of becoming an idol, Yuu Azuma, a determined first-year student at Joshu East High School, sets out to create a vibrant idol group. To bring her vision to life, she reaches out to talented girls from four distinct high schools in her region, each located in a different direction—north, east, south, and west. As Yuu recruits her fellow members, she begins to forge connections that will shape their collective journey.

Among her newfound companions are Ranko Kashima, an elegant second-year from Holy Teneritas Southern Girls' Academy, who possesses a flair for the dramatic and a love for Madame Butterfly; Kurumi Taiga, a spirited student from West Tech Vocational High School, known for her quirky oversized jackets and aspirations in robotics; and Mika Kamei, a compassionate volunteer from Joshu North High School, whose kindness shines brightly. With the support of Shinji Kudou, Yuu's dedicated ally, these four girls embark on a challenging path toward fame, facing obstacles, intense training, and the weight of their aspirations along the way.