A new era of military entertainment begins! Year 20YX. Global warming is causing sea ice to decrease in the Arctic Ocean. The Maritime Self-Defense Force destroyer Shiranui, on which Kaburaki, a candidate to become the next captain of the Ibuki, is dispatched to conduct research. Suddenly, a civilian research vessel is attacked by someone...! The "Shiranui" quickly uses its weapons to protect the civilian ship, but...! Who attacked it? What was the reason for the attack! Show more