The story takes place during a conflict between the Krakozhia Dukedom and the Grania Republic. In the midst of the fighting, a savior appears to the Krakozhia Dukedom, and it is a high school student named Yano Souhei. Two female soldiers, First Lieutenant Ruto and Second Lieutenant Haruka, appear in tanks to intrude on Souhei's everyday life, followed by the enemy soldier Shachirofu, all of whom use firearms without hesitation at his house.
(Source: ANN)+ More
Characters & Voice Actors

Haruka
Main
Lutgalnikov
Main
Cecilie
Supporting
Grue
Supporting
Grummans, Aria
Supporting
Mamo-chan
Supporting
Mizuno, Yukari
Supporting
Ossan
Supporting
Shakirov
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