Taisho era, Japan.
Tanjiro, a kind-hearted boy who buys charcoal, one day his family was killed by a ghost.
And the only surviving sister, Nezuko, turned into a ghost.
Tanjiro, who was overwhelmed by the desperate reality, met a boy who looked exactly like him - Kamado Tangaro.
The two decided to move forward on the path of the "Demon Slayer Corps". At the same time, the thousand-year grudge between the Demon Slayer Corps and the ghosts also came to an end.
If you write it yourself, it must be praised.