The main characters make up the Anglerfish Team (あんこうチーム Ankō Chīmu) of Ōarai Girls High School's Sensha-dō team, with Miho serving as overall commander. They were assigned the German Panzer IV Ausf. D, armed with the short-barreled 75mm KwK 37 L/24 gun that is mostly used for infantry support.
The tank was later upgraded to a Panzer IV Ausf. F2 when they found a long-barreled 75mm KwK 40 L/43 anti-tank cannon which was being used to hang clothes out to dry.
It was upgraded again to Ausf. H for the Sensha-dō tournament finals match by adding "Schürzen" spaced armour.