Synopsis
Just before the new term starts, Misaki Fujioka goes to Yomiyama City to see her twin sister Mei Misaki. The two girls savor the final days of summer, wandering through a sweltering town and stopping by places like a shopping center and a shooting range. While exploring the basement of Mei's home, Mei confides her unease about her new class, rumored to be under a curse. Seeking more fun, the twins head to a nearby amusement park. However, the relaxed pace of a lazy summer day may take a grim turn when Mei catches sight of the color of death on her sister—a clear sign that a tragedy is about to unfold.