In a distant future where humanity thrives in space, a catastrophic event known as the Jikushin disrupts all networks, resetting civilizations. As mankind emerges from the ashes, the Transvaal imperial country rises to power in the galactic core, embracing the enigmatic 'Lost Technology' as divine relics. Revered as 'Tsuki no miko,' the priestesses uphold these ancient marvels. Meanwhile, on the frontier, an ordinary guard fleet harbors an extraordinary squad known as the 'Angel Corps'—a group of quirky women piloting the mystical 'Angel Frame,' remnants of the Lost Technology. Tasked with recovering and safeguarding lost tech, this unconventional team, including the weapon enthusiast Forte, cosplay aficionado Mint, reserved Vanilla, flamboyant Ranpha, and culinary enthusiast Milfeulle, embarks on missions that often spiral into chaos.