Kouichi's friendship with Mei seems to be one sided. He takes every chance he can get to speak to her, but she never seems to understand what he says. Her replies seem more cryptic as the days go by, and their classmates become increasingly suspicious.

The rumor of the "Class 3 Curse" gains notoriety with the sudden and accidental death of a student. Kouichi, desperate to know more, turns to Mei who refuses to tell him anything else. Izumi Akazawa, the head of countermeasures, begins the investigation on Class 3.