A cat turned into a cyborg decides the best way to protect his elderly owners is to pretend nothing changed, hiding inside a stuffed toy skin and speaking in complete sentences nobody's supposed to hear. The joke never gets old because it's not really about the disguise, it's about a pet willing to become something unrecognizable to keep two humans safe. 66 episodes of pure heart wrapped in absurdist sci-fi setup, aimed at people who think a robot cat in a plush costume protecting pensioners is exactly as funny as it sounds.

Kuro is an ordinary cat whose one wish is to protect his owners, an elderly couple who cannot look after themselves. While he is out on a date with his girlfriend Pooly, a dog, an evil scientist kidnaps him and rebuilds him as a robot controlled by a chip. Kuro manages to pull the chip out and finds he can now speak like a human, but his new mechanical look frightens people. His answer is to hide inside the skin of a stuffed toy and carry on living as a pet. The result is a comedic science fiction series built around a cyborg cat in disguise.