It has been three years since the calamity of 1998 that claimed the lives of many students in Yomiyama North Middle's class 3-3. After being placed into the cursed class, Sou Hiratsuka will have to work alongside class of 1998 survivor Mei Misaki in order to avert a new disaster. But as mysterious accidents and deaths pile up despite their countermeasures, the pair will be forced to reckon with Yomiyama North's deepest mysteries...