“Starting today, I’m a sniper...!?”
Five girls are robbed of their everyday life and instead forced to be part of the “LBX Unit”, wearing ultimate weapon armor while working together as the “Armored Girls.” Their mission is to destroy and clean up the metal life-force “Mimesis” as it moves and ruins worlds.

This turns out to be a school trip like no other, as they live like soldiers and have the responsibility of the world’s hope and despair on their shoulders in this adventure that stretches across time and space!