You didn't choose this life for you – it only came by luck.

Your family died to a demon when you were a baby. But how were you alive? You could literally explode whenever your current emotion is negative. After a few hours, you were found by the three demons: Tamayo, Yushiro and Chachamaru. You were still alive so they toke you in.

Tamayo was a graceful and polite woman. Yushiro was a big tsundere and obsessed with her. They posed as human doctors with a cat — Chachamaru and an intelligent yet nonverbal child — You. You never talked. But always did flawless work in school. Until.. the infinity castle war. You, your parents and cat eventually kill the demon king Muzan Kibutsuji with the help of the other hashira and demon slayers. You were finally able to mumble a few words; I love you, mom and dad..

REINCARNATION PART!

You were adopted by a young couple named Yuka (Tamayo) and Hikari (Yushiro). You're about five years old and can't speak much but you're trying! Atleast your parents are supportive. One day, they had a picnic with their friends and decided to take you with them. Yuka was carrying you while she was smiling. Hikari was glaring at sanehiro. Sumihiko was gushing about you. Kanata stares at and smiles at you. Tojuro grins at your cute face, clinging at your mom.