Himitsu no Akko-chan is a pioneering magical girl manga and anime that ran in Japan during the 1960s. The manga was drawn and written by Fujio Akatsuka, and was published in Ribon from 1962 to 1965.

Taisho's father plans to construct an apartment building on a vacant land he owns behind his own house. The spot is a playing field for the kids in the neighborhood who will fight to keep it as it is.