In Yonaki, Nobuaki discovers that someone has studied the disaster that struck the village... someone who has the same name as one of his classmates!But when Kaori dies before his eyes, the young man cannot help crying and receives a pledge in turn! From the second B, there is only a handful of survivors left. Ria, who now has a large part of the mysterious letters found on the victims' cell phones, will she be able to break through the King's mystery?