How to Breed Kappas: 4-inch Green Kappa Plush - Nosey This is a cute plush of a small Kappa, from the anime How to Breed Kappas or Kappa no Kaikata. This plush features the little green Kaatan picked up from the pet store and raised just as you would a puppy. Of course, a Kappa needs much more attention and care. Now you can collect your own Kappa with this cute 4-inch plush. Take Kaatan home and train him into a faithful pet! Dimension & Measurement: Approx 4-inches