Arpeggio of Blue Steel, Vol. 09

The battle between 401 and Kongou begins at last-but Gunzou and

Hyuga are off on a mission of their own.

Meanwhile, in Yokosuka, Takao goes undercover. Posing as a student at the National Maritime Institute of Technology where Gunzou and the 401 crew studied, Takao tries to uncover the true story behind Facility Number 4.