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.

A resort hotel is the rendezvous destination for Kouichi, Reiko and Matsunaga. As they spend a day sunning at the beach, they run into Mei, who's staying nearby.

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.