C2

C2 is the nanobot Grace's mother, Sophia, made. The nanobots currently inside the Beasts make the animals stronger, but also make the animals crazy when the nanobots reach the nervous system, even if theorically those Beasts should live forever. However, with the C2, the nanobots would be safe for the nervous system, and the animal should live forever. Sadly, the C2 has new parts Grace is unable to fabricate. The only way Grace has a chance of making a C2 is by salvaging the original nanobots still inside the Beast that started it all...