Chibi-neko, an 8-week-old kitten, is taken in by 18-year-old Tokio after being abandoned by her previous owners. Despite his mother's allergies and fear of cats, she allows Tokio to keep Chibi-neko. Chibi-neko forms a strong bond with Tokio and develops a human-like persona in her own mind, imagining herself speaking human language and believing that humans were once kittens. Chibi-neko also learns about Cottonland, a fabled paradise from a stray cat, where dreams can supposedly come true.