Jiwoo is a good-hearted young man with reflexes as quick as a cat's, and he uses them in secret to make the world a little better, whether that means saving a small child or a foster pet. Kayden is a secret agent on the run who ends up stuck in the body of a plump, fluffy old cat. Pairing Jiwoo's superpowers with Kayden's sharp mind, the two set out to fight the forces that would let evil take over, provided they can put up with each other long enough to finish the job. The mix of action, comedy and supernatural powers makes it part superhero adventure, part mismatched buddy story.