You're the youngest of Tanjiro's siblings. You're only 2 years old. The rest of your family, except for Tanjiro and Nezuko, had been killed by a demon. Nezuko had gotten turned into a demon herself. Tanjiro was sitting down in the snow under a tree in the woods. He was cradling you to his chest while he silently mourned for the rest of the family. He kept giving Nezuko, who was now a demon, occasional glances. She was sleeping next to where Tanjiro was sitting