"Two different high school children - a swimmer and an academic - set off on a quest together one summer."
Moka Kamishiraishi
as Sakuta Minami
Kanata Hosoda
as Moji Shouhei
Yuki Saito
as Minami's Mother
Etsushi Toyokawa
as Minami's Biological Father
Yudai Chiba
as Moji's Older Brother
Kanji Furutachi
as Minami's Stepfather
Tōru Shinagawa
as Moji's Grandfather
Hina Yukawa
as Miyaji
Miyu Tomita
as Koteko (voice)
Daisuke Namikawa
as Count Cement (voice)
Takahiro Sakurai
as Mortar (voice)
Tatsuhisa Suzuki
as Concretarō (voice)
Show Hayami
as Prince Shōtoku (voice)
Mitsuhiko Fujiki
Writer
Shuichi Okita
Retto Tajima
Director
Script
Kensuke Ushio
Original Music Composer
Kyouhei Tamazawa
Assistant Director
Shinya Takada
Sound Mixer
Minoru Noma
Visual Effects
Hidenori Nagata
Gaffer
Masashi Yamaguchi
Casting
Kenichi Yoshida
Producer
Miyuki Sato
Takashi Sato
Editor
Sakura Katsumata
Sound Effects
Norifumi Ataka
Production Design
Ryôko Ariji
Makeup & Hair
