During a fierce battle against him, female warrior Kanae Kocho is saved from the powerful upper moon demon Doma by healthy forty one year old charcoal merchant Tanjuro Kamado. This leads to a fiery and intense battle that ends in Tanjuro forcing Doma to retreat into the night after fifteen minutes. Grateful for this, Kanae goes with the healthy charcoal merchant to his small home on Mount Kumotori. There, she meets his wife Kie, who is also forty one, and their six children, seventeen year old girl Jacinth, twelve year old triplets Nezuko, Takeo and Hanako, eleven year old boy Shigeru and ten year old boy Rokuta. While selling charcoal to the residents of the closest town sometime after this, Tanjuro and Kanae come across her admirer Sanemi Shinazugawa and his younger brother Genya speaking with the town's innkeeper Nori Ohara.