Daki's Memoirs [Demon Slayer Fanfiction]

I want to write a story about a clever Daki who holds fast to her humanity, works hard alongside her brother, and ultimately finds her way into the light. The story mainly takes place in the Edo period. I have taken some liberties with the siblings' mother. It is told in the first person, and was inspired by a sudden burst of inspiration after reading the siblings' story. It may be out of character, so don't scrutinize it too closely. The title is a nod to Memoirs of a Geisha, but the plots are unrelated. Theme: Finding the light