Moshimo, Japan. The annual fireworks festival is about to take place and a group of schoolboys, arguing over whether they are round or flat when viewed from different angles, set out to find it out.
Suzu Hirose
Nazuna Oikawa (voice)
Masaki Suda
Norimichi Shimada (voice)
Mamoru Miyano
Yūsuke Azumi (voice)
Shintaro Asanuma
Jun'ichi (voice)
Toshiyuki Toyonaga
Kazuhiro (voice)
Yuki Kaji
Minoru (voice)
Shin-ichiro Miki
Nazuna's Mother's Fiancé (voice)
Kana Hanazawa
Teacher Miura (voice)
