Summer Days with Coo (2007)

A boy befriends an orphaned water spirit, or Kappa, he found dried up and buried in a riverbank. He and his family help the creature adjust to life in the modern world.

Director: Keiichi Hara

Cast: Kazato Tomizawa, Takahiro Yokokawa, Naoki Tanaka, Naomi Nishida, Tamaki Matsumoto, Natsuki Uematsu, Michio Hazama, Yuzuru Fujimoto, Kôsei Tomita, Miyuki Ichijô, Yasuo Iwata, Minoru Inaba, Sayuri Sadaoka, Hiromi Nishikawa, Ayumi Sena, Masato Hirano, Fujiko Takimoto, Rika Inoue