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.

Matsunaga's tape has at last revealed the secrets and measures necessary to stop the curse. Kouichi and his friends try to figure out how to avert more disasters when the tape suddenly disappears.

Mei Misaki secretly meets with her twin, Misaki Fujioka, and they spend the day together. Little do they know, that both of their lives are about to change.