Working alongside the Professor after avoiding disassembly, the android maid Aki agrees to participate in an experiment aimed at creating a defender of global peace. When a massive robotic entity starts causing destruction in the vicinity, she activates her new capabilities to confront the danger head-on. Her initial success gives way to a critical setback as she falls into the enemy's grasp. This turn of events sets the stage for unexpected trials in her quest to fulfill her protective duties.