Demon Slayer: Kimetsu no Yaiba (Hashira Training Arc): Sayo

She's the youngest of the orphaned children (4 years old) being taken care by the Stone Hashira, Gyomei Himejima, during his younger years before joining the Demon Slayer Corps. She's got a kind-hearted personality and was selfless by giving Gyomei her fish dinner since he wasn't eating at all, worried about his thin body. She lost her parents during a demon attack and was founded by Gyomei within a temple along with nice other kids. Sadly, things gotten tragic when a demon attacked the children at one night thanks to Kaigaku's disobedience when he was supposed to be back at the sanctuary temple before nightfall but instead, he willingly betrayed his companions in order to save himself from getting killed by removing the protective Wisteria incense and let the demon in. As the result, four of the children immediately were murdered by the demon's relentless assault, while the remaining ones defied Gyomei's orders and were killed while they fled. This enraged Gyomei as he brutally murdered the demon with his bare hands until sunrise in a bloody mess, Sayo, on the other hand, got so scared that she called Gyomei a monster as he killed everyone despite not being true since the demon was the killer. She struggled to articulate herself properly and failed to dispel the suspicions that had befallen Gyomei, causing him to be unjustly imprisoned and charged with the heinous crime of killing the eight children. This is from Episode 7 of Season 4.

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