Kura Kura 21 Film: Fixed

[Imagining a search] Hmm, it seems that Kura Kura 21 might be a local or independent film, possibly from Japan, but information is scarce. The user might be referring to a specific film that wasn't officially released widely or is a fan project. Since there's limited data, I might need to create a generalized write-up based on typical structure for film write-ups.