High School Fleet OVA

After the defeat of the rogue Musashi, the students from Yokosuka Girls' Marine High School return home safely. The Harekaze, however, suffers severe damage in its final battle and might be unable to operate again. Rumors suggest the Harekaze-class could be disbanded due to the loss of its ship. Other classes begin recruiting the Harekaze's crew, increasing uncertainty about their future. The potential solution lies in sealed orders that Kouko Nosa, the Harekaze's secretary, must deliver to the crew. But time is limited.