In the year of 1972, a girl named Misaki died a few months after school started. Since she died, all of her classmates begin dying one after another. The only way to stop these deaths is to find the person who is already dead. The catch is that they have no memories that knowledge that they are dead.
Years after Misaki's death, the deaths are still going on. A boy named Kouichi is about to find about the past and Misaki's death. After his classmates start dying one after another. He and an eyepatch girl named Misaki are determined to save their classmates's lives and kill the Another.