Underwaterlove-Onna No Kappa- | HMV&BOOKS online : Online Shopping & Information Site - KKJS-128 [English Site]
Kappa Meaning | Pop Culture by Dictionary.com
Kappa no Kaikata (How to Breed Kappas) - MyAnimeList.net
Amazon.com: Underwater Love (Onna no kappa) (Under water Love - A Pink Musical) [Region 2] : Sawa Masaki, Yoshirô Umezawa, Ai Narita, Mutsuo Yoshioka, Fumio Moriya, Emi Nishimura, Hiroshi Satô, Yutaka Ônishi,