How Old is Muzan in Demon Slayer?
Muzan Kibutsuji is over 1,000 years old! He was turned into a demon during the Heian period in Japan, which was around the 10th-11th century.
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Muzan is ancient鈥攐ver a 1,000 years old! He became a demon back in the Heian period.
Over 1,000 years old, easy.
He鈥檚 a millennium-old baddie! Muzan鈥檚 been wreaking havoc for over a thousand years.
As old as your great-great-great-great-great-grandparent's grandparent鈥檚 grandparent! Muzan is over 1,000 years old.
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