Wikipedia
Akane-chan
Akane-chan (あかねちゃん, "Little Miss Akane") is a shōjo manga series by Tetsuya Chiba. It was serialized in Shōjo Friend, published by Kodansha, from April to September 1968. It was adapted into a 1968 Toei anime series with the same name directed by Fusahito Nagaki, Yasuo Yamaguchi, Yugo Serikawa and Takeshi Tamiya, which was originally broadcast on Fuji TV.
According to Jonathan Clements and Helen McCarthy's The Anime Encyclopedia, it was "deliberately designed to evoke a distant, carefree time of rural childhood for city kids deprived of the opportunity, placing it in the same spirit as My Neighbor Totoro."