Arpeggio of Blue Steel -Ars Nova-

Now the captain of I-401, Gunzou sets course for Yokosuka after accepting a mission from the Japanese government. Takao, a Fleet of Fog Heavy Cruiser, stands in his way. As Takao steadily chips away at I-401's decoys and threatens the boat itself, Gunzou decides that a showdown is necessary. (Source: Crunchyroll)