The story takes place in a small town high school. On an ordinary morning, an unidentified person wearing a mask rushed into the school to carry out a massacre, resulting in the death of four students. After the police arrived to investigate the matter, the conclusion was that the perpetrator was not an outsider, and the true culprit was hidden among the 421 students and teachers.
The story takes place in a small town high school. On an ordinary morning, an unidentified person wearing a mask rushed into the school to carry out a massacre, resulting in the death of four students. After the police arrived to investigate the matter, the conclusion was that the perpetrator was not an outsider, and the true culprit was hidden among the 421 students and teachers.