Given that Demon Slayer has a long, storied history of post-credit surprises and skits, it stands to reason that you should stick around long after the credits to Infinity Castle have rolled in cinemas.
As you'll soon find out, however, there isn't an MCU-style stinger or Demon Slayer: Infinity Castle post-credits scene to set up the sequel, nor are there any Taisho-era secrets for Tanjiro to divulge this time out. Instead, there's one little bonus waiting for you at the end, plus a chance to bask in Infinity Castle's ending theme.
