Shin-chan must rescue the adults of Kasukabe when they mysteriously abandon their responsibilities to relive their youth at the new 20th-century expo.
Shinnosuke Nohara (voice)
Misae Nohara (voice)
Hiroshi Nohara (voice)
Hiroshi Nohara (childhood) (voice)
Himawari Nohara (voice)
Ken (voice)
Chako (voice)
Shiro / Kazama (voice)
Nene-chan (voice)
Masao Kun
Bo-chan (voice)
Encho Sensei (voice)
Ginnosuke Nohara (voice)
Tsuru Nohara (voice)
Fukuencho (voice)
Yoshinaga Sensei (voice)
Matsuzaga-sensei (voice)
Masumi Ageo (voice)
TV voice
