Just before the arrival of a certain transfer student, three students at an academy in Paldea are tasked with making a video showcasing their school.

The story centers on the Platonic Heart, a jewel that—according to an old urban legend—can grant any wish when collected. Only a chosen few are allowed to compete in the Platonic Heart hunt, and high school junior Aya Iseshima is one of 11 girls and women who are taking part.