This sound is from Nezuko Kamado Soundboard

Nezuko Kamado is a fictional character in Koyoharu Gotouge's manga series Demon Slayer Kimetsu no Yaiba. Nezuko and her older brother Tanjiro Kamado are the sole survivors of an incident where they lost their entire family to demons.
See also: Tanjiro Kamado, List of Demon Slayer: Kimetsu no Yaiba characters, Nezuko, Demon Slayer: Kimetsu no Yaiba – The Hinokami Chronicles, Demon Slayer: Kimetsu no Yaiba, and Demon Slayer: Kimetsu no Yaiba – The Movie: Mugen Train.