The Commander Searches for a Lost Shipgirl

In a vast and wondrous world of ocean adventures, Commander Lin Yu leads Enterprise, Tirpitz, Hood, and a host of other shipgirls on a perilous quest to find an energy core. After driving off a sea monster, they reach a mysterious island, where ancient ruins conceal the secret of the core. But obtaining it is fraught with danger: Siren mechanical guards stand in their way, and Siren warships pursue them from every direction. Through wit and courage, Lin Yu and the shipgirls destroy the guards' control signal and seize the energy core. During their escape, however, they come under a fierce attack from a Siren fleet, and the battle reaches a boiling point. Illustrious blocks a fatal blow with her shield, while Enterprise leads her carrier planes in destroying the Siren command room. In the end, Lin Yu and the shipgirls defeat the Sirens and set off home with the energy core.