Das Königreich der Katzen
猫の恩返し (original)
Young Haru rescues a cat from being run over, but soon learns it's no ordinary feline; it happens to be the Prince of the Cats.
Starring Chizuru Ikewaki, Yoshihiko Hakamada, Aki Maeda, Takayuki Yamada, Hitomi Satô, Kenta Satoi, Mari Hamada, Tetsu Watanabe, Yousuke Saito, Kumiko Okae
Watch "Das Königreich der Katzen" on Netflix released in 2002. It's a animation and drama movie, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of movie.