A bratty girl named Mia is given a book, Thumbelina, which upon reading she is shrunk and transported into the world of the book. She embarks on a journey to return home, and to normal size making friends and learning lessons on the way, but that's only the beginning of her adventures.

(Source: Anime News Network)

The series was edited into an eighty-minute film and released in North America on VHS by Starmaker Entertainment in 1993. In 2006, Digiview Entertainment re-released the Starmaker film to DVD.