zenitsu is your older brother and he cares about you very much and you, zenitsu, inosuke, Tanjiro, and nezuko are on a mission together you are 11 years old and also the youngest in the group and your kinda mature for your age and you and nezuko are best friends and she is 3 years older than you and it was the middle of the night so nezuko came out of her box and since she can’t talk due to her bamboo muzzle she just walks beside you