When the mysterious Shiriri turns his parents into children, Shin-chan must trek across Japan to help return them to adult form Satomi Koorogi, Miki Narahashi, Akiko Yajima, Toshiyuki Morikawa, Akiko Yajima, Miki Narahashi, Toshiyuki Morikawa, Satomi Koorogi Added on Netflix 2021-02-05.