The Mountain Grannie of Mt. Choufuku / Sadaroku and Shiro / Zashiki-Warashi

The mountain grannie has given birth to a child and the villagers are told to bring Mochi. The talented hunter Sadaroku is never found without his hunting dog, Shiro. He has a license to hunt wherever he wants, but one day he leaves it at home and is arrested. A traveling medicine seller stays at a mansion where he is visited by three young children in a dream. They were Zashiki Warashi, said to bring prosperity. Source: crunchyroll