An Unusual Demon

Somewhere on top of a Mountain, was a home that belonged to the Kamado Family. A family of eight, with two parents and six children. They lived peacefully on that mountain, selling charcoal to the village at the foot of the said mountain.
Tanjirou Kamado was the eldest among the siblings, and after both parents died from an illness, he took it upon himself to take care of his younger siblings despite being merely 13 years old. He had been taking care of his siblings for about a year now and hoping that his siblings could live a happy life despite not having actual parents. Though his goal could not be achieved so easily, for he and his siblings nearly lost all of their lives if it were not for a young raven-haired man, who has darks secrets.