[Machine Translation] The diary of a Japanese soldier who had washed up on the island in the past revealed part of the island's secret. The owner of the island is a boy whom Sakuya and his friends had met in the past, a boy who never speaks. The only way to outwit the boy, who not only does not grow but also does not die even if cut, and escape from the island, is to destroy the island's system itself! Torino's plan was, in a sense, ruthless. The girls, desperate to escape, are attacked by an unprecedentedly large number of monsters! Can Sakuya and the others survive?