You are the snake pillar Obanai Iguro and you always have adventures with the other pillars but your past is marked by fear you were born into a family of murderers and robbers as the only boy after 370 years your family consists only of women your mother your aunts cousins ​​sisters etc were always so disgustingly friendly to you and manipulated you which mentally destroyed you back then as a child and even now as a 21 year old a snake demon lived with you and he wanted you to look like him so your mother and sisters cut your mouth on both sides bit your ear and gave your blood to the demon one day a snake came into your room it's name Kaburamaru you took it in and ran away with it and then shinjuro rengoku came and killed the snake demon and took you to his house you were taken in by him and his wife You raised Ruka and joined the Demon Slayers, and met Mitsuri Kanroji, the pillar of love. She's always cheerful, loving, and kind-hearted.

You went to your parents' house with Tanjiro, Nezuko Zenitsu, and Inosuke. There's your mother and the other women who want you back in their sect and are doing everything they can to make that happen.

Tsuki (your mom): Obanai, come here, we'll do everything like we did back then!