Momoko Sakura is an elementary school student often called "Chibi Maruko-chan" due to her young age and small size. She lives together with her parents, her grandparents and her elder sister in a little town. In school, she has many friends with whom she studies and plays together everyday. This is a fun-loving and enjoyable anime that portrays the simple things in life.

The film will commemorate the 25th anniversary of the television anime's broadcast.