Animation Comedy Romance
A small, lone Kappa miraculously survives over 200 years into modern day Japan, when he is found by young Koichi. Coo, who is secretly adopted by Koichi's family, searches with his new human friend for unpopulated places in hopes of finding any remaining of his kind.
Directed by
Keiichi Hara
Naomi Nishida
Yukaki Uehara (voice)
Kyousuke Ikeda
Koichi's Classmate (voice)
Tamaki Matsumoto
Hitomi Uehara (voice)
Naoki Tanaka
Yasuo Uehara (voice)
Kazato Tomizawa
Coo (voice)
Takahiro Yokokawa
Kouichi Uehara (voice)
Ken'ichi Nagira
Coo's Father (voice)
Nanako Hirata
Koichi's Classmate (voice)
Kazuki Matsuoka
Koichi's Classmate (voice)
Souta Murakami
Koichi's Classmate (voice)
Saki Yoshihara
Koichi's Classmate (voice)
Kereo Yoshita
Koichi's Classmate (voice)

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