number1. When he was attacked by a ghost with other family members, he was transformed into a ghost when he was dying because his wound was stained with the blood of Oni Mai Tsuji, and he always protected Tanjiro in times of crisis and acted with others. He usually sleeps in a wooden box on Tanjiro's back, so he can change his body shape freely. Can use the blood ghost art "Blood Blood". Before becoming a ghost, she was a gentle girl who always missed her family. Use Ipad to draw.