Kouichi Sakakibara has just arrived in Yomiyama, and he's already hospitalized with a collapsed lung. After joining the local middle school almost a month late, he becomes friends with someone he met while in the hospital — a quiet girl with an eye patch.

A charm has been evoked by Class 3 for the past 26 years to ward off any further calamitous incidents. Kouichi begins to accept what's going on around him. However, he deems it unreasonable and begins spending more time with Mei.

Fresh blood is spilled, and Class 3 realizes that the curse hasn't stopped. The Charm rituals are called off. Everyone is on edge, wondering who among them is actually dead. Meanwhile, Kouichi learns of an incident 15 years in the past.

Chaos runs through the lodge hallways as students desperately seek the key to stopping the Class 3 Curse once and for all. Will Kouichi be able to find the answer before another victim is claimed?