Another
 In 1972, a popular student named Misaki who was in class 3-3 of Yomiyama North Middle School suddenly died partway through the school year. Devastated by the unexpected loss, the students and teachers behaved like Misaki was still alive, leading to a strange presence on the graduation photo. In Spring 1998, a 15-year old boy named Kōichi Sakakibara transfers into Yomiyama's class 3-3, where he meets the peculiar Mei Misaki, who is seemingly ignored by her classmates. The class is soon caught up in an epidemic where students, or people related to class 3-3 students, are caught up in mysterious deaths. Learning these deaths have something to do with the mystery of 1972, it is up to Kōichi and Mei to discover the cause of these mysterious deaths and figure out how to put an end to it before it puts an end to them.