Why Do Swordsmith Villagers Wear Masks in 'Demon Slayer?

For a very crucial reason.

飛べ. — HAGANEZUKA HOTARU SWORDSMITH VILLAGE ARC EP. 07

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RECAP: Demon Slayer: Kimetsu no Yaiba Swordsmith Village Arc, Episodes 1 & 2 - Crunchyroll News

Demon Slayer: Swordsmith Village Arc

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