In Class 14 of the first year at City No. 1 High School, a key liberal arts class with fifty places, one extra student suddenly appeared, someone no one recognized. During Monday's first morning class, the female homeroom teacher killed herself in front of the entire class. Over the next seven days, students died one after another in inexplicable and bizarre ways. No one in the class survived. The extra student became the only clue to unraveling this curse of death.
Theme: High school life
