Black★RockShooter: The Game

In 2032, Earth is attacked by an alien force, leading to global chaos. Nearly two decades later, the only hope for preventing total destruction is to survive and resist those threatening Earth's existence. A being known as BRS, classified as a "living weapon," is tasked with defending humanity. She wields the power to combat the invaders as the ultimate weapon. Emerging from the ruins of San Francisco, she encounters a gathering of surviving soldiers who provide support for her mission.