“Himitsu no Akko-chan” is about a young elementary school girl called Akko-chan who received a magical compact mirror that allows her to transform into anything she wishes. The movie is going to feature an original tale, with Akko-chan having to transform herself into a 22-year-old adult woman in order to protect her crush and first love, an elite salary man played by Okada Masaki. Depending on the circumstances she always chooses another occupation in order to seamlessly fit into the current situation, including a figure skater, a cabin attendant, an office lady, a policewoman, and a racing motorcyclist. The movie is based on Fujio Akatsuka's manga "Himitsu no Akko-chan" published in Ribon from July, 1962 - September 1965.