After suffering a crushing defeat against Bonpuru High School, the morale of Tatehiko High School is at an all-time low. To save them, Shizuka and Anchovy step in to lend a hand! And finally, the reigning champions, Kuromorimine Girls' Academy, are also making a serious entry into the assault tank competition! So, Shizuka and Suzu are now infiltrating Kuromorimine Girls' Academy!