Hachimitsu Academy, once an all-girls school, has become co-ed, and teen Kiyoshi is one of five boys to enroll. When he is caught peeping, Kiyoshi is sent to the schools prison, where his punishment is carried out.

It is the 12th film based on the popular comedy manga and anime series Crayon Shin-chan. The film was released to theatres on April 17, 2004 in Japan.