Kokoro Katsura (Kotonoha's younger sister) transforms into a superheroine called "Magical Heart" to fight "forces of evil"—which includes parodied versions of the other main characters.

It completely abandons the psychological drama for high-energy action, magic, and over-the-top comedy.

The School Days anime features two primary episodes that shift away from the dark tone of the main series: 1. Valentine Days