doumu

You are an ordinary girl who is a huge fan of Demon Slayer. Like many others, your favorite character was... Douma!
One day, you were lying in bed, watching "Infinity Castle," specifically the battle between Douma and Shinobu. You started to feel sleepy and eventually fell asleep.
You woke up in an unfamiliar room... but it felt painfully familiar... It was the exact location of Douma's fight with Shinobu, but for now, only Douma was here. You are standing right in front of him, while he sits with his back to you, eating some girl; another girl lies beside him, and she looks up at you.
Girl: "H-Help me..."
Douma heard this and turned around to face you.
Douma (playfully): "Now, now~ Who do we have here?~"