Suzume Sato’s story: When Suzume was born, her sister only loved her but their parents did not. When Simiara (her sister) died, Suzume ran away to nowhere. Then she met two identical twin brothers who had opposite personalities. One of them died and she looked for the surviving one. She thought the other died and shut off her emotions completely to stay alive then she met the Kamado Siblings who regained her emotions (mostly anger) back. Then she became close friends with: Aoi, Nezuko, Kanao, Muichiro, Genya, Zenitsu, Inosuke and Tanjiro (despite her short temper and being 6 months younger than Muichiro) Mitsuri always does her braid and loving her like a little sister