[Machine Translation] Samejima and Orpheus investigate the undersea ruins with Kai-Kisai. As Samejima is poisoned by the sea people and fades into a daze, more enemies appear... Meanwhile, Nanase and Chako are waiting on land for Samejima and the others to return home, but the cult's clutches are on them! The time for a new decision looms for Samejima and Nanase, who are in dire straits!