In their quest to deliver crucial blueprints to the United States, the privateers of Blue Steel face a new danger from their formidable foes, the Fleet of Fog, embodied in 'The Student Council'—a group of powerful warships governed by enigmatic humanoid avatars. As tensions escalate, the unpredictable Captain Gunzou Chihaya must navigate this perilous encounter. Meanwhile, as the truth behind the enemy's authority slowly unravels, Iona's mysterious past sheds light on the origins of the conflict and her unwavering support for humanity.