Trapezium

Yu Azuma, a first-year student at Jōshū East High School, dreams of becoming an idol and follows a strict set of rules: no social media, no boyfriends, staying low-key, and recruiting beautiful girls from the four cardinal directions. To form her dream idol group, she befriends Kurumi, a robotics champion from the west, Ranko, an elegant southern girl aspiring to be a refined lady, and Mika, a dedicated volunteer from the north. With the help of her classmate Shinji Kudō, Yu's plan to gather the "stars" from each direction starts to take shape.