Alps no Shoujo Heidi

アルプスの少女ハイジ

After becoming an orphan, Heidi is forced to live with her grandfather Öhi, who lives in the Alps. She learns he's a very bitter man who only accepted by force to take her in. But Heidi's kindness may be able to open his heart. Together with the shepherd Peter and invalid Clara, she has lots of adventures. (Source: adapted from ANN)