From Senpai Scans:

Himesato Ui has just enrolled in her late mother's old high school, Shinomiya Academy, as a first year! Hatsu's mother was known as "Prima", the most beautiful girl, in the Academy. Ui was full of hope and expectations in enrolling in the Academy, but she was puzzled by the Academy's system of evaluation for students was by a point system. Furthermore, in the school, she met an unknown pretty boy?!