The Ghost Well / The Man Who Bought Dreams / Tougorou the Potato Digger

A mysterious woman visits a candy store every night. The owner follows her after she leaves, but she disappears into a grave... A traveling merchant buys his partner's dream of treasure for a lot of money. The beautiful daughter of a rich man is sent to marry tougorou the potato digger. Tougorou is lonely and miserable and poor in the mountains, but one day... Source: crunchyroll