The Tale of the Monster Bandai, Part 1 Episode 3

Hyakkimaru and Dororo are sleeping in the open by the river when they come across a goblin called Kanekozo. The next day, when they tell the villagers of their encounter with the harmless goblin, they are caught by the villagers and confined in a small hut on the grounds of a female headman called Bandai. That night, a horrifying monster comes out of the old well by the hut. Hyakkimaru tries to destroy it.