Synopsis
Set against the backdrop of a war between the Krakozhia Dukedom and the Grania Republic, the narrative introduces Yano Souhei, a high school student who emerges as a savior for his nation. His peaceful routine is shattered when two female soldiers, First Lieutenant Ruto and Second Lieutenant Haruka, arrive in tanks to invade his home, immediately followed by the enemy combatant Shachirofu. These figures proceed to unleash a barrage of gunfire within Souhei's residence without any hesitation.