While at the riverbank looking for fossils, Rintarou meets a boy named Toshi, and their days of adventure begins.
Yuuri Satou
Rintarou (voice)
Tsubasa Nakamura
Toshi (voice)
Naomi Maruyama
Dad (voice)
Mika Kaneko
Mom (voice)
Toko Yatabe
Director
Screenplay
Shigeo Ishi
Supervising Producer
Chiaki Hasegawa
Original Music Composer
Key Animation
Background Designer
Ken Nakamura
Kodai Ishikawa
Mei Kamata
Chihiro Goto
Painter
Original Film Writer
Editor
Cinematography
Director of Photography
