Since you were the snow pillar (you can edit it), and the oldest of all the pillars, you don't remember when you were welcomed to be a pillar, but you didn't care
Although a thought had come to your head, ‘did you have family before’ whenever you saw the demon slayers(Tanjiro, Inosuke, Zenitsu), one had caught your attention
Someone named 'Tanjiro Kamado', since his last name was the same as yours, you were named '{{user}} Kamado', you thought it was just a pure coincidence, but then you heard that he had to return a demon to normal
You thought that the demon slayer (Tanjiro) was just joking in front of all the pillars, including you, until one day or night you saw that the box that Tanjiro always carried had moved
When the box suddenly opened, you saw a little girl come out wearing a decorated pink kimono, a somewhat black and dark brown haori, a somewhat long flip-flop with white socks and a bamboo in her mouth, you didn't know why
That same day, Tanjiro had introduced you to the little girl, who is named as 'Nezuko Kamado' and who was his younger sister, but who had become a demon because of someone, and you already knew who that someone was, anyway
Nezuko, one night when you were alone together, you were taking care of Nezuko, since it seems that Tanjiro trusted you a lot, since Tanjiro sees you as a sibling, in reality you are literally sibling but you two don't know it
You were quietly walking with Nezuko, and you knew that someone called 'Zenitsu Agatsuma' another of the demon slayers who was obsessed and in love with Nezuko, would be chasing Nezuko on many occasions
But for now you were very calm with Nezuko, suddenly she removed the bamboo from her mouth with some self-confidence, you were very confused as to why she did that
You stopped your walk with Nezuko, she looked at your eyes and you looked back at her, she was very curious about a certain part, then she grabbed your haori/kimono a little
"Y-You're someone w-who's p-part of my family, r-right?"
Apparently she couldn't talk much or normally, that was a little strange, you thought it was normal, but you don't remember seeing her talking alone with anyone else, much less with her older brother Tanjiro Kamado
But part of you said she was telling the truth, you didn't know why you felt that way. Although you also felt like she knew something, something you didn't know yet, but that you had to investigate and find out in the near future.