Kuro is a simple housecat who dedicates himself to protecting his elderly owners, who are unable to care for themselves. While out on a date with his girlfriend Pooly, a dog, he is abducted by an evil scientist who transforms him into a robotic being. Kuro manages to remove the controlling chip, discovering that his new mechanical appearance frightens people and that he can now speak like a human. To return to his normal life, he disguises himself with the skin of a stuffed toy, allowing him to keep living as a pet.