Koukaku no Pandora

Synopsis

In an age of advanced technology, a cyborg named Nene Nanakorobi meets an inventor named Uzal Delilah and her cyborg pet, Clarion, on their way to Cenancle Island. Shortly after the girls arrive on the island, the city comes under attack by an army of robots controlled by a group of rebels who despise Uzal. In order to battle against them, Uzal gives Nene authority to use the Pandora Device inside of Clarion, updating her operating system to temporarily give her the skill to use a gun. After the robots are stopped, Uzal brings Nene to her laboratory where she gives Nene an optical camouflage for when she uses the Pandora Device, before the rebels ask for Uzal's help in stopping a robot that had gone berserk.

(Source: Wikipedia)