Ep. 8: Hyuga negotiates with Kongou's decoy while Gunzou prepares to deliver a vibration torpedo to the United States.
Aired on November 26, 2013

Surrounded by enemy forces at Iwo Jima, Hyuga contacts Kongou via Gunzou’s request to parley before hostilities begin. Kongou arrives with Maya, while the I-401 crew remains on standby. Gunzou learns the Fleet of Fog follows the Admiralty Code to drive humans from the seas. During a beach barbecue, Kongou questions Iona about ships acting independently but refuses to engage further, revealing that both mental models are decoys with cores protected on their ships. As the decoys attack, Hyuga struggles to defend the island until Takao, Haruna, and Kirishima intervene. Disappointed that diplomacy failed, Gunzou resolves to bypass Kongou and deliver a vibration torpedo to the United States.
Episodes
- Ep. 4 · I-401 Evades Yokosuka Assault by Kirishima and Haruna
- Ep. 5 · Haruna and Kirishima investigate Makie Osakabe and the Vibration Warhead at Iwo Jima
- Ep. 6 · Haruna protects Makie with Kirishima's aid while Iona arrives and Takao awakens.
- Ep. 7 · The I-401 crew reaches Iwo Jima base where Hyuga and Takao await their return
- Ep. 8 · Hyuga negotiates with Kongou's decoy while Gunzou prepares to deliver a vibration torpedo to the United States.
- Ep. 9 · Hyuga and Takao defend against Kongou while Iona and the crew execute a complex escape plan.
- Ep. 10 · Iona sacrifices her mental model to save Gunzou while Kongou is relieved of duty.
- Ep. 11 · I-401 evades Nagara ships while Takao joins systems and Iona faces sisters and Kongou
- Ep. 12 · Kongou attacks the American Fleet while Iona boards a torpedo to reason with her directly.