Demon Slayer season 2 will be released on Dec. 10, after prequel arc - Polygon

Demon Slayer’s new season will start with a prequel arc that covers the events of the Mugen Train movie, starting on Oct. 10. Demon Slayer season 2’s release date is scheduled for Dec. 5.

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Demon Slayer' season 2: release date, plot details, and everything

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Demon Slayer' Season Finale Will Be a 45-Minute Long Special

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How Many Episodes in Demon Slayer Season 2 will be Released

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Demon Slayer Entertainment District Arc' Season 2, Episode 6