How Old Is Nezuko Kamado in a Silent Voice

It seems there might be a misunderstanding in the prompt regarding the character and the series. Nezuko Kamado is a central character in Demon Slayer: Kimetsu no Yaiba, not A Silent Voice (Koe no Katachi). As such, I cannot create a Super Pillar Hub titled "How Old Is Nezuko Kamado in A Silent Voice" because she does not appear in that series, and any information provided under that title would be factually incorrect and misleading to readers....