Ranma has a pet when he goes to Jusenkyo, but there's more to the unusual kitty than meets the eye.  (Comedy/ Adventure) Ranma ½ / All-Purpose Cultural Catgirl Nuku Nuku crossover.

Chapter 1: Jusenkyo, the Valley of the Really Cursed Springs

Chapter 2: Just Two Normal Days in Nerima

Chapter 3 - Old acquaintances, gratuitous female appearances and Happi nowhere in sight!