After their school trip shipwrecks, the four—Sakuya, Kaede, Natsu, and Suzu—who washed ashore on the same beach deepen their bonds while escaping from monstrous beings. When Sakuya, separated from the others, loses consciousness, he is rescued by a group of young ladies who were washed up on a different beach. The girls, ensnared by the deepening mysteries and madness of the island. This is a monster panic horror that depicts the young ladies living with dignity on a desolate island of despair, Volume 2!