The Harekaze is broken. The crew that saved the entire fleet now faces dissolution because they don't have a ship to sail. These two episodes aren't about spectacular naval combat, they're about the quiet aftermath of victory, when you realize saving the world doesn't guarantee your family stays together. The show earns its emotional weight not through drama but through the small moments where each girl considers leaving. By the end, you understand why these specific people chose to stay broken together instead of whole apart.
With the mutinous Musashi defeated, the girls of Yokosuka Girls' Marine High School return home, but the Harekaze took critical damage in the final clash and may never sail again. Rumors spread that the Harekaze class will be broken up because it no longer has a ship, and other classes trying to recruit its crew only deepen the uncertainty. Kouko Nosa, the ship's secretary, is charged with bringing sealed orders to her crewmates, and those orders may hold the answer. As she prepares to deliver them, time is running out. This two-episode comedy and slice-of-life OVA picks up after the main story ends and centers on the crew facing an unsure future together.