Before the curse devours a classroom, there's a girl in a basement with her sister, worried about something she can't name. This is Another stripped of spectacle, just two people in summer heat, one of them already marked by something invisible, learning to live with dread as ordinary as the season. You watch Mei become haunted before the haunting even starts.

Just before a new semester begins, Misaki Fujioka comes to Yomiyama City to see her twin sister, Mei Misaki. The two spend the last days of summer wandering a town worn down by the heat, stopping at a shopping center and a shooting stall. While they poke around her basement, Mei admits she feels uneasy about her new class, which is rumored to be cursed. Wanting more fun, the sisters head for the local amusement park, but the lazy day threatens to turn grim when Mei sees the color of death on Misaki, a sign that tragedy is coming. This single-episode horror mystery OVA serves as a prequel to Another.