The Fortress Port of Yokosuka

The Fortress Port of Yokosuka

Available on Prime Video, Crunchyroll
S1 E3: Triumphant over Takao, I-401 enters the Port of Yokosuka to receive a sample of the top-secret warhead developed by the Japanese government. However, a powerful politician demands that Iona fall back under government custody. As the tension mounts, Yokosuka is suddenly subjected to cannon fire!