Arpeggio of Blue Steel (Volume 14) by Performance, Ark (Ilt)

Gunzou might still be missing in action, but Iona is determined to make sure that his plan to smuggle a warhead across the Pacific Ocean goes ahead. If it's successful, it will give humanity a much needed win against the Fog. But in order for the plan to work, the I-401 will have to act as a decoy and go toe-to-toe against a dangerous enemy.