După ce în urma unui atac al demonilor, familia lui este ucisă, iar sora lui este blestemată, Tanjiro pornește într-o călătorie periculoasă pentru a găsi un leac și a-i răzbuna pe cei pe care i-a pierdut.

In a world inhabited by people only a few inches tall, young women Hakumei and Mikochi live together in a house built into a tree. Hakumei is an energetic and tomboyish carpenter, while Mikochi is a feminine and calm tailor. Despite their differences, they get along well and spend their days having fun living their lives in the woods.

The two of them spend their time working, going on sightseeing adventures, and taking shopping trips into Tsumiki Marketplace by the ocean. They make many friends along the way, be they sentient woodland creatures like Iwashi the Weasel or fellow miniature people such as the songstress Konju and the inventor Sen.

This is a relaxing look into the day-to-day lives of its titular characters as they explore and interact with their tiny world which seems to be straight out of a fairy tale.